There were 203 million people living in the U.S. in 1970 -- and almost 8 million of them lived in the country's biggest city, New York City. It's the year first lady Melania Trump was born, as was director M. Night Shyamalan and singer Mariah Carey. It's the decade that gave us the pet rock and "Pong," as well as Stephen Hawking's theories about the Big Bang and the existence of black holes. Think you know '70s trivia? Dream on!
How much do you know about how car engines work? And how much do you know about how the English language works? And what about how guns work? How much do you know? Lucky for you, HowStuffWorks is about more than providing great answers about how the world works. We are also here to bring joy to your day with fun quizzes, compelling photography and fascinating listicles. Some of our content is about how stuff works. Some is about how much you know about how stuff works. And some is just for fun! Because, well, did you know that having fun is an important part of how your brain works? Well, it is! So keep reading!