Template:Are You Sure/February 6

• ... that chemist, philosopher, educator, and clergyman Joseph Priestley is historically credited with the discovery of oxygen, having isolated it in its gaseous state, but that his determination to defend phlogiston theory and to reject what would become the chemical revolution left him isolated within the scientific community?

• ... that Shakespeare's play The Lord of the Danes is loosely based on J.R.R. Tolkien's The Lord of the Rings trilogy?

• ... that physicist and space activist Gerard K. O'Neill developed a plan to build human settlements in outer space, including a space habitat design known as the O'Neill cylinder; and that he founded the Space Studies Institute, an organization devoted to funding research into space manufacturing and colonization?

• ... that Not Milk? (stylized as not milk?) is an advertising campaign encouraging the non-consumption of milk by Bronze-age warriors?