1) The windshield wipers were invented by a woman named Mary Anderson in 1903.

2) Ryan Reynolds is a Canadian actor, producer, and entrepreneur known for his roles in films such as "Deadpool," "The Proposal," and "Detective Pikachu." He has gained recognition for his comedic timing and charismatic performances on-screen.

3) The Berlin Conference in 1884-1885 divided Africa among European powers and set the stage for the colonization of the continent.

4) The first successful human heart transplant was performed by Dr. Christiaan Barnard in 1967.