1) The Black Lives Matter movement gained renewed momentum in 2020 following the killings of George Floyd, Breonna Taylor, and others, sparking protests and discussions on systemic racism, police reform, and social justice around the world.

2) The world's largest volcano, Mauna Loa in Hawaii, is also one of the most active.

3) The oldest known musical instrument is a flute made from a bird bone, estimated to be around 43,000 years old.

4) The word "flower" contains two vowels: O and E.