The Tagalog word for event boundary is "hangganan ng pangyayari."
it when one event starts another event
The Tagalog meaning of flashback is "pagbabalik-tanaw." It refers to a sudden and vivid recollection of a past event.
The answer depends on the nature of the event. If the event is composed of sub-events then a tree diagram may help but if not, it is irrelevant.
A sample space diagram is usually a Venn diagram with the event(s). See the related link.
The arceaus event
A loss event
Frequently in Tagalog is often translated as "madalas" or "madalas na." It is used to indicate a high occurrence or regularity of an action or event.
special event.
A frequency diagram.
There are many events that are important to chains. The main event if chain is the Civil War.
Some collective nouns for chains are a length of chain or a reel of chain. The word chain is also a collective noun, for example a chain of events, a chain of circumstances, etc.