Can you pass this 1970s quiz?
Which scientist developed his theories of black holes in the 1970s?
Stephen Hawking
Stephen Jay Gould
Donald Johanson
Georges Kohler
Hot Quizzes Trending Now
Puzzles
3.4 M Players
"Brothers and sisters have I none, but that man's father is my father's son." Who is that man?
1960s
2.63 M Players
What money-related innovation was introduced in London in 1967?