1) The Black Lives Matter movement, which gained prominence in 2013, advocates for racial justice and equality, addressing systemic racism and police violence against Black individuals.

2) The fall of the Berlin Wall in 1989 symbolized the end of the Cold War and the reunification of East and West Germany.

3) The word "computer" contains three vowels: O, U, and E.

4) The first modern health insurance policy was introduced in Germany in the late 19th century.