Some of the things they have launched:

* Facebook Apps (not really a thing anymore. Maybe it still exists)

* Facebook Games (remember Zynga?)

* Facebook Deals (they were taking on GroupOn)

* Messenger (as a separate product. One of the most heavily used products in the world)

* Events (which for many people is the only reason they have an account)

* Facebook Groups (still heavily used)

* Facebook Pages (still heavily used)

* Facebook Video (still heavily used)

* Facebook Marketplace (extremely heavily used in many markets)

* Stories (still heavily used)

* Reels (sort of merged into Videos)

* Facebook Places (big plans, but died)

* Facebook Graph Search (nothing like originally released: https://en.wikipedia.org/wiki/Facebook_Graph_Search)