CKEditor - Real-time collaborative future-ready rich text editor
Future - Calendar events around the clock
Summernote - Summernote is a JavaScript library that helps users create WYSIWYG editors online.
Event Calendar App - A simple, easy to manage, way of displaying events
Froala Editor - Froala Editor is a WYSIWYG HTML editor that enables rich text editing capabilities for the applications.
Loxi - Easily add an events calendar to any website.