A person who turned 21 in 1978 is now 66 years of age.
The teenagers that existed in 1978 are now 58–64 years old.
Four decades have passed since then.
Movies came on VHS tapes.
America's involvement in the Vietnam War had only ended five years previously.
Most offices were still using typewriters. It wasn't until the nineties that PCs began to take over.
In 1978, nobody knew that AIDS existed.
The Moon is moving away from Earth at roughly 1.49 inches per year. That means that it has moved away by about 67 inches since 1978.
There have been roughly 2,340 weekends since then.
CNN did not exist.
Names such as Prince, Metallica, Richard Gere, U2, Princess Diana, Bill Clinton, and Jackie Chan were not famous at the time.
Popular songs that year included the likes of "How Deep Is Your Love" by The Bee Gees, "Baby Come Back" by Player, "Stayin' Alive" by The Bee Gees, "Love Is Thicker Than Water" by Andy Gibb, "Night Fever" by The Bee Gees, and "If I Can't Have You" by Yvonne Elliman.
Films such as "Superman", "Midnight Express", "Magic", "Up In Smoke", "Animal House", and "Hooper" were playing at movie theaters in 1978.
The Earth has travelled 203 billion miles through space since 1978.
Costco didn't exist.
There was no such thing as "Chicken McNuggets."
Although microwave ovens existed, they were still too expensive for most homes.
The term "serial killer" hadn't been coined yet.
Sid Vicious was still alive.
Due to the expansion of the Atlantic Ocean, the distance between the United States and Europe has grown 113 centimeters since 1978.
A person who was born that year has had roughly 90–135 colds in their lifetime.
The world has gone through 180 seasons of weather.
The Sony Walkman didn't exist in 1978.
Camcorders weren't a thing yet. Video cameras were heavy and often had to be mounted on special supports.
"Dallas", "The Incredible Hulk", "Taxi", and "WKRP in Cincinnati" were among the TV shows that started airing that year.