About FullCalendar v4+
FullCalendar is a fully responsive event display callendar that can display events directly from your database or from your google calendar. The events can be dragged, changed, edited (which requires implimentation). This is the latest version of FullCalendar which lacks IE10 support. FullCalendar is great for displaying events, but it isn't a complete solution for event content-management. Beyond dragging an event to a different time/day, you cannot change an event's name or other associated data. It is up to you to add this functionality through FullCalendar's event hooks.
Find in-depth, guidelines, tutorials and more on FullCalendar's Official Documentation