diff --git a/source/data/localization/deu.loc.json b/source/data/localization/deu.loc.json
index a16a029..e3a4cfc 100644
--- a/source/data/localization/deu.loc.json
+++ b/source/data/localization/deu.loc.json
@@ -38,6 +38,9 @@
 		"page.calendar_add.title": "Kalendar anlegen",
 		"page.calendar_add.actions.do": "anlegen",
 		"page.event_add.title": "Termin anlegen",
-		"page.event_add.actions.do": "anlegen"
+		"page.event_add.actions.do": "anlegen",
+		"page.event_edit.title": "Termin ändern",
+		"page.event_edit.actions.change": "ändern",
+		"page.event_edit.actions.remove": "löschen"
 	}
 }
diff --git a/source/data/localization/eng.loc.json b/source/data/localization/eng.loc.json
index 29b10aa..745647d 100644
--- a/source/data/localization/eng.loc.json
+++ b/source/data/localization/eng.loc.json
@@ -38,6 +38,9 @@
 		"page.calendar_add.title": "Add calendar",
 		"page.calendar_add.actions.do": "anlegen",
 		"page.event_add.title": "Add event",
-		"page.event_add.actions.do": "anlegen"
+		"page.event_add.actions.do": "add",
+		"page.event_edit.title": "Change event",
+		"page.event_edit.actions.change": "change",
+		"page.event_edit.actions.remove": "delete"
 	}
 }
diff --git a/source/logic/backend.ts b/source/logic/backend.ts
index be323db..32b2b7e 100644
--- a/source/logic/backend.ts
+++ b/source/logic/backend.ts
@@ -281,6 +281,27 @@ namespace _zeitbild.frontend_web.backend
 	}
 	
 	
+	/**
+	 */
+	export async function calendar_event_get(
+		calendar_id : _zeitbild.frontend_web.type.calendar_id,
+		event_id : _zeitbild.frontend_web.type.local_resource_event_id
+	) : Promise<_zeitbild.frontend_web.type.event_object>
+	{
+		return call(
+			lib_plankton.http.enum_method.get,
+			lib_plankton.string.coin(
+				"/calendar/{{calendar_id}}/event/{{event_id}}",
+				{
+					"calendar_id": calendar_id.toFixed(0),
+					"event_id": event_id.toFixed(0),
+				}
+			),
+			null
+		);
+	}
+	
+	
 	/**
 	 */
 	export async function calendar_event_add(
@@ -302,11 +323,32 @@ namespace _zeitbild.frontend_web.backend
 	
 	
 	/**
-	 * @todo event id type
+	 */
+	export async function calendar_event_change(
+		calendar_id : _zeitbild.frontend_web.type.calendar_id,
+		event_id : _zeitbild.frontend_web.type.local_resource_event_id,
+		event_object : _zeitbild.frontend_web.type.event_object
+	) : Promise<void>
+	{
+		return call(
+			lib_plankton.http.enum_method.put,
+			lib_plankton.string.coin(
+				"/calendar/{{calendar_id}}/event/{{event_id}}",
+				{
+					"calendar_id": calendar_id.toFixed(0),
+					"event_id": event_id.toFixed(0),
+				}
+			),
+			event_object
+		);
+	}
+	
+	
+	/**
 	 */
 	export async function calendar_event_remove(
 		calendar_id : _zeitbild.frontend_web.type.calendar_id,
-		event_id : int
+		event_id : _zeitbild.frontend_web.type.local_resource_event_id
 	) : Promise<void>
 	{
 		return call(
@@ -337,7 +379,8 @@ namespace _zeitbild.frontend_web.backend
 			{
 				calendar_id : _zeitbild.frontend_web.type.calendar_id;
 				calendar_name : string;
-				event : _zeitbild.frontend_web.type.event_object;
+				event_id : (null | _zeitbild.frontend_web.type.local_resource_event_id);
+				event_object : _zeitbild.frontend_web.type.event_object;
 			}
 		>
 	>
diff --git a/source/logic/main.ts b/source/logic/main.ts
index ad822ea..ce861e0 100644
--- a/source/logic/main.ts
+++ b/source/logic/main.ts
@@ -10,11 +10,18 @@ namespace _zeitbild.frontend_web
 	) : Promise<void>
 	{
 		// conf
-		await _zeitbild.frontend_web.conf.init("conf.json");
-		
+		await _zeitbild.frontend_web.conf.init(
+			"conf.json"
+		);
 		
 		// init
-		await _zeitbild.frontend_web.backend.init();
+		lib_plankton.log.conf_push(
+			[
+				lib_plankton.log.channel_make({"kind": "console", "data": {"threshold": "info"}}),
+			]
+		);
+		await _zeitbild.frontend_web.backend.init(
+		);
 		await lib_plankton.translate.initialize(
 			{
 				"verbosity": 1,
diff --git a/source/logic/types.ts b/source/logic/types.ts
index cccdfae..0656131 100644
--- a/source/logic/types.ts
+++ b/source/logic/types.ts
@@ -54,6 +54,11 @@ namespace _zeitbild.frontend_web.type
 	};
 	
 	
+	/**
+	 */
+	export type local_resource_event_id = int;
+	
+	
 	/**
 	 */
 	export type resource_id = int;
diff --git a/source/logic/view.ts b/source/logic/view.ts
index 755e546..22301bd 100644
--- a/source/logic/view.ts
+++ b/source/logic/view.ts
@@ -165,7 +165,8 @@ namespace _zeitbild.frontend_web.view
 							entries : Array<
 								{
 									calendar_id : _zeitbild.frontend_web.type.calendar_id;
-									event : _zeitbild.frontend_web.type.event_object;
+									event_id : (null | _zeitbild.frontend_web.type.local_resource_event_id);
+									event_object : _zeitbild.frontend_web.type.event_object;
 								}
 							>;
 							today : boolean;
@@ -203,7 +204,8 @@ namespace _zeitbild.frontend_web.view
 			{
 				calendar_id : _zeitbild.frontend_web.type.calendar_id;
 				calendar_name : string;
-				event : _zeitbild.frontend_web.type.event_object;
+				event_id : (null | _zeitbild.frontend_web.type.local_resource_event_id);
+				event_object : _zeitbild.frontend_web.type.event_object;
 			}
 		> = await _zeitbild.frontend_web.backend.events(
 			from_pit,
@@ -228,7 +230,8 @@ namespace _zeitbild.frontend_web.view
 							entries : Array<
 								{
 									calendar_id : _zeitbild.frontend_web.type.calendar_id;
-									event : _zeitbild.frontend_web.type.event_object;
+									event_id : (null | _zeitbild.frontend_web.type.local_resource_event_id);
+									event_object : _zeitbild.frontend_web.type.event_object;
 								}
 							>;
 							today : boolean;
@@ -265,7 +268,8 @@ namespace _zeitbild.frontend_web.view
 				entries : Array<
 					{
 						calendar_id : _zeitbild.frontend_web.type.calendar_id;
-						event : _zeitbild.frontend_web.type.event_object;
+						event_id : (null | _zeitbild.frontend_web.type.local_resource_event_id);
+						event_object : _zeitbild.frontend_web.type.event_object;
 					}
 				>;
 				today : boolean;
@@ -323,7 +327,7 @@ namespace _zeitbild.frontend_web.view
 				.forEach(
 					(entry) => {
 						const distance_seconds : int = (
-							lib_plankton.pit.from_datetime(entry.event.begin)
+							lib_plankton.pit.from_datetime(entry.event_object.begin)
 							-
 							from_pit
 						);
@@ -384,6 +388,14 @@ namespace _zeitbild.frontend_web.view
 				week : int;
 			};
 			timezone_shift ?: int;
+			action_select ?: (
+				(
+					calendar_id : _zeitbild.frontend_web.type.calendar_id,
+					event_id : _zeitbild.frontend_web.type.local_resource_event_id
+				)
+				=>
+				void
+			)
 		} = {}
 	) : Promise<string>
 	{
@@ -427,7 +439,8 @@ namespace _zeitbild.frontend_web.view
 							entries : Array<
 								{
 									calendar_id : _zeitbild.frontend_web.type.calendar_id;
-									event : _zeitbild.frontend_web.type.event_object;
+									event_id : (null | _zeitbild.frontend_web.type.local_resource_event_id);
+									event_object : _zeitbild.frontend_web.type.event_object;
 								}
 							>;
 							today : boolean;
@@ -556,9 +569,22 @@ namespace _zeitbild.frontend_web.view
 																				sources.get(
 																					entry.calendar_id
 																				).name,
-																				entry.event
+																				entry.event_object
+																			),
+																			"name": entry.event_object.name,
+																			"rel": lib_plankton.string.coin(
+																				"{{calendar_id}}/{{event_id}}",
+																				{
+																					"calendar_id": entry.calendar_id.toFixed(0),
+																					"event_id": (
+																						(entry.event_id === null)
+																						?
+																						"-"
+																						:
+																						entry.event_id.toFixed(0)
+																					),
+																				}
 																			),
-																			"name": entry.event.name,
 																		}
 																	)
 																)
@@ -592,7 +618,8 @@ namespace _zeitbild.frontend_web.view
 		Array<
 			{
 				calendar_id : _zeitbild.frontend_web.type.calendar_id;
-				event : _zeitbild.frontend_web.type.event_object;
+				event_id : (null | _zeitbild.frontend_web.type.local_resource_event_id);
+				event_object : _zeitbild.frontend_web.type.event_object;
 			}
 		>
 	>
@@ -620,7 +647,8 @@ namespace _zeitbild.frontend_web.view
 		const entries : Array<
 			{
 				calendar_id : _zeitbild.frontend_web.type.calendar_id;
-				event : _zeitbild.frontend_web.type.event_object;
+				event_id : (null | _zeitbild.frontend_web.type.local_resource_event_id);
+				event_object : _zeitbild.frontend_web.type.event_object;
 			}
 		> = await _zeitbild.frontend_web.backend.events(
 			(options.from as lib_plankton.pit.type_pit),
@@ -632,9 +660,9 @@ namespace _zeitbild.frontend_web.view
 		// TODO: optimize
 		entries.sort(
 			(entry_1, entry_2) => (
-				lib_plankton.pit.from_datetime(entry_1.event.begin)
+				lib_plankton.pit.from_datetime(entry_1.event_object.begin)
 				-
-				lib_plankton.pit.from_datetime(entry_2.event.begin)
+				lib_plankton.pit.from_datetime(entry_2.event_object.begin)
 			)
 		);
 		
@@ -656,7 +684,8 @@ namespace _zeitbild.frontend_web.view
 		const stuff : Array<
 			{
 				calendar_id : _zeitbild.frontend_web.type.calendar_id;
-				event : _zeitbild.frontend_web.type.event_object;
+				event_id : (null | _zeitbild.frontend_web.type.local_resource_event_id);
+				event_object : _zeitbild.frontend_web.type.event_object;
 			}
 		> = await calendar_view_list_data(
 			calendar_ids,
diff --git a/source/pages/event_edit/logic.ts b/source/pages/event_edit/logic.ts
new file mode 100644
index 0000000..46ed671
--- /dev/null
+++ b/source/pages/event_edit/logic.ts
@@ -0,0 +1,179 @@
+namespace _zeitbild.frontend_web.pages
+{
+	
+	/**
+	 */
+	lib_plankton.zoo_page.register(
+		"event_edit",
+		async (parameters, target_element) => {
+			const calendar_id : int = parseInt(parameters["calendar_id"]);
+			const event_id : int = parseInt(parameters["event_id"]);
+			target_element.innerHTML = await _zeitbild.frontend_web.helpers.template_coin(
+				"event_edit",
+				{
+					"label": lib_plankton.translate.get("page.event_edit.title")
+				}
+			);
+			const form : lib_plankton.zoo_form.class_form<
+				_zeitbild.frontend_web.type.event_object,
+				{
+					name : string;
+					begin : lib_plankton.pit.type_datetime;
+					end : (null | lib_plankton.pit.type_datetime);
+					location : (null | string);
+					description : (null | string);
+				}
+			> = new lib_plankton.zoo_form.class_form<
+				_zeitbild.frontend_web.type.event_object,
+				{
+					name : string;
+					begin : lib_plankton.pit.type_datetime;
+					end : (null | lib_plankton.pit.type_datetime);
+					location : (null | string);
+					description : (null | string);
+				}
+			>(
+				(value) => ({
+					"name": value.name,
+					"begin": value.begin,
+					"end": value.end,
+					"location": value.location,
+					"description": value.description,
+				}),
+				(representation) => ({
+					"name": representation.name,
+					"begin": representation.begin,
+					"end": representation.end,
+					"location": representation.location,
+					"description": representation.description,
+				}),
+				new lib_plankton.zoo_input.class_input_group<any>(
+					[
+						{
+							"name": "name",
+							"input": new lib_plankton.zoo_input.class_input_text(
+							),
+							"label": lib_plankton.translate.get("event.name")
+						},
+						{
+							"name": "begin",
+							"input": new lib_plankton.zoo_input.class_input_datetime(
+								{
+									"label_timezone_shift": lib_plankton.translate.get("common.timezone_shift"),
+									"label_date": lib_plankton.translate.get("common.date"),
+									"label_time": lib_plankton.translate.get("common.time"),
+								}
+							),
+							"label": lib_plankton.translate.get("event.begin")
+						},
+						{
+							"name": "end",
+							"input": new lib_plankton.zoo_input.class_input_soft<lib_plankton.pit.type_datetime>(
+								new lib_plankton.zoo_input.class_input_datetime(
+									{
+										"label_timezone_shift": lib_plankton.translate.get("common.timezone_shift"),
+										"label_date": lib_plankton.translate.get("common.date"),
+										"label_time": lib_plankton.translate.get("common.time"),
+									}
+								)
+							),
+							"label": lib_plankton.translate.get("event.end")
+						},
+						{
+							"name": "location",
+							"input": new lib_plankton.zoo_input.class_input_soft<string>(
+								new lib_plankton.zoo_input.class_input_text(
+								)
+							),
+							"label": lib_plankton.translate.get("event.location")
+						},
+						{
+							"name": "description",
+							"input": new lib_plankton.zoo_input.class_input_soft<string>(
+								new lib_plankton.zoo_input.class_input_text(
+								)
+							),
+							"label": lib_plankton.translate.get("event.description")
+						},
+					]
+				),
+				[
+					{
+						"label": lib_plankton.translate.get("page.event_edit.actions.change"),
+						"target": "submit",
+						"procedure": async (get_value, get_representation) => {
+							const value : any = await get_value();
+							try {
+								await _zeitbild.frontend_web.backend.calendar_event_change(
+									calendar_id,
+									event_id,
+									value
+								);
+								lib_plankton.zoo_page.set(
+									{
+										"name": "events",
+										"parameters": {}
+									}
+								);
+							}
+							catch (error) {
+								lib_plankton.log.warning("page_event_edit_error", {"error": String(error)});
+								// do nothing
+								/*
+								lib_plankton.zoo_page.set(
+									{
+										"name": "event_add",
+										"parameters": {
+										}
+									}
+								);
+								 */
+							}
+						}
+					},
+					{
+						"label": lib_plankton.translate.get("page.event_edit.actions.remove"),
+						"target": "submit",
+						"procedure": async (get_value, get_representation) => {
+							try {
+								await _zeitbild.frontend_web.backend.calendar_event_remove(
+									calendar_id,
+									event_id
+								);
+								lib_plankton.zoo_page.set(
+									{
+										"name": "events",
+										"parameters": {}
+									}
+								);
+							}
+							catch (error) {
+								lib_plankton.log.warning("page_event_edit_error", {"error": String(error)});
+								// do nothing
+								/*
+								lib_plankton.zoo_page.set(
+									{
+										"name": "event_add",
+										"parameters": {
+										}
+									}
+								);
+								 */
+							}
+						}
+					},
+				]
+			);
+			await form.setup(document.querySelector("#event_edit_form"));
+			const event_object : _zeitbild.frontend_web.type.event_object = await _zeitbild.frontend_web.backend.calendar_event_get(
+				calendar_id,
+				event_id
+			);
+			await form.input_write(
+				event_object
+			);
+			return Promise.resolve<void>(undefined);
+		}
+	);
+	
+}
diff --git a/source/pages/event_edit/structure.html.tpl b/source/pages/event_edit/structure.html.tpl
new file mode 100644
index 0000000..e69de29
diff --git a/source/pages/events/logic.ts b/source/pages/events/logic.ts
index 7502912..18daa5d 100644
--- a/source/pages/events/logic.ts
+++ b/source/pages/events/logic.ts
@@ -6,7 +6,7 @@ namespace _zeitbild.frontend_web.pages
 	lib_plankton.zoo_page.register(
 		"events",
 		async (parameters, target_element) => {
-			const content = await _zeitbild.frontend_web.view.calendar_view_table_html(
+			const content : string = await _zeitbild.frontend_web.view.calendar_view_table_html(
 				{
 					"calendar_ids": null,
 					// TODO
@@ -23,6 +23,34 @@ namespace _zeitbild.frontend_web.pages
 				}
 			);
 			target_element.innerHTML = content;
+			target_element.querySelectorAll(".calendar-event_entry").forEach(
+				(element) => {
+					element.addEventListener(
+						"click",
+						() => {
+							const rel : string = element.getAttribute("rel");
+							const parts : Array<string> = rel.split("/");
+							const calendar_id : _zeitbild.frontend_web.type.calendar_id = parseInt(parts[0]);
+							const event_id : (null | _zeitbild.frontend_web.type.local_resource_event_id) = (
+								(parts[1] === "-")
+								?
+								null
+								:
+								parseInt(parts[1])
+							);
+							lib_plankton.zoo_page.set(
+								{
+									"name": "event_edit",
+									"parameters": {
+										"calendar_id": calendar_id,
+										"event_id": event_id,
+									}
+								}
+							);
+						}
+					);
+				}
+			);
 			return Promise.resolve<void>(undefined);
 		},
 	);
diff --git a/source/templates/event_edit.html.tpl b/source/templates/event_edit.html.tpl
new file mode 100644
index 0000000..2d47742
--- /dev/null
+++ b/source/templates/event_edit.html.tpl
@@ -0,0 +1,5 @@
+<div id="event_edit">
+	<h2>{{label}}</h2>
+	<div id="event_edit_form">
+	</div>
+</div>
diff --git a/source/templates/tableview-cell-entry.html.tpl b/source/templates/tableview-cell-entry.html.tpl
index d0346b1..49658fe 100644
--- a/source/templates/tableview-cell-entry.html.tpl
+++ b/source/templates/tableview-cell-entry.html.tpl
@@ -1,3 +1,3 @@
-						<li class="calendar-event_entry" style="background-color: {{color}};" title="{{title}}">
+						<li class="calendar-event_entry" style="background-color: {{color}};" title="{{title}}" rel="{{rel}}">
 							{{name}}
 						</li>
diff --git a/tools/makefile b/tools/makefile
index b0255b1..a32ffd7 100644
--- a/tools/makefile
+++ b/tools/makefile
@@ -57,6 +57,7 @@ ${dir_temp}/logic-unlinked.js: \
 		${dir_source}/pages/oidc_finish/logic.ts \
 		${dir_source}/pages/calendar_add/logic.ts \
 		${dir_source}/pages/event_add/logic.ts \
+		${dir_source}/pages/event_edit/logic.ts \
 		${dir_source}/pages/events/logic.ts \
 		${dir_source}/logic/main.ts
 	@ ${cmd_log} "logic | compile …"