Stygiomedusa gigantea (ghost jellyfish) have arms that can grow more than 10 metres long and scientists believe these are used to grab and trap prey.
On January 18, 1965, Dr. Martin Luther King was assaulted by a segregationist in a hotel in Selma, Alabama
Julius Wagner- Juaregg, an Austrian physician discovered a way to treat syphilis with malaria in the early 20th century.