Here are some additional notes:
* Kasaysayan is a noun and can be used in both singular and plural forms.
* It encompasses the study of past events, as well as the stories and narratives that recount those events.
* It is a very common word in Filipino language and culture.
For example, you could say:
* "Ang kasaysayan ng Pilipinas ay mahaba at masalimuot." (The history of the Philippines is long and complex.)
* "Nag-aaral kami ng kasaysayan sa paaralan." (We are studying history in school.)