Event same as delegate chain?

Question

I heard a statement from a non-English web site, which is Event is same as delegate chain.
Is it correct as they all have += operator?

Answer 1

An example shows how you can subscribe to Load even of a form:
https://msdn.microsoft.com/en-us/library/ms366768.aspx. It shows the usage of “+=” and “-=”, therefore an event, similarly to delegate value, represents a chain of handlers. The difference is that you cannot use all of the operations which are available
for delegates: “=handler”, “=null”, “==null”,
invocation, etc. All of the operations are available only inside the class where the event is declared (e.g. the
Load event in Form class), or inside the inner classes.