Eco-Friendly Innovations
An oil crisis in the '70s helped spur the development of this type of power from our closest star.
In 1984, women were first allowed to compete in this lengthy Olympic running event.
Marathon
This beloved '70s rom-com is directed by and stars Woody Allen alongside Diane Keaton.
Annie Hall
This famous Mark's stories were the inspiration for 1998's A Knight in Camelot and 1983's Sawyer and Finn.
Mark Twain
National parks opened in this state in 1980 included Gates of the Arctic and Glacier Bay.
Alaska
Short for light-emitting diodes, energy-friendly bulbs called by this abbreviation came on the market between 1962 and 1993.
LED bulbs
Olympic events added in the 1990s include this women's bat-and-ball sport.
Softball
One of the most successful movie musicals and an iconic rom-com, this 1978 film features '50s teens Danny and Sandy.
Grease
This Mark is known for his role on Shark Tank; he got his start selling startups in the 1990s.
Mark Cuban
Called for the most magical parks on Earth, this company opened theme parks in Florida, Tokyo, and Paris between 1970s and '90s.
Disney (or Disneyland)
Despite controversial origins, this paperless for of mail was invented during the 1970s and has been saving paper ever since.
In this sport, Janet Guthrie was the first woman to qualify for the Indy 500 and Daytona 500 in the same year.
Auto racing
This rom-com is recognizable just from a few big names: Richard Gere, Julia Roberts, and director Garry Marshall.
Pretty Woman
This Mark is best known as Luke Skywalker in the Star Wars film franchise.
Mark Hamill
This national park is a collection of sites showcasing the revolutionary history of one city in Massachusetts and including the USS Constitution.
Boston National Historical Park
Organic, natural products gained popularity in the 1970s, including this staple food that is a mix of grains, nuts and dried fruits.
Granola
In 1970, she organized the "Original Nine" tennis greats for a women's tournament, with a symbolic one-dollar contract.
Billie Jean King
In 1989, Billy Crystal met Meg Ryan as this pair of friends caught up in will-they-won't-they.
Harry and Sally; When Harry Met Sally
This actor and musician, sometimes known as Marky Mark, transitioned from early '90s music sensation to serious actor.
Mark Wahlberg
This kind of theme park, specializing in aquatic pursuits, surged in popularity during the 1980s.
Discoveries in the 1980s led to various environmental innovations and efforts to repair this layer of the atmosphere.
Ozone layer
In 1991, this organization held its first Women's World Cup, which was won by the U.S. team over Norway.
FIFA
The 1990s teen romance A Walk to Remember is based on a book by this noted author of love stories.
Nicholas Sparks
Born in 1951, this famous Mark's resume includes roles on St. Elsewhere and NCIS.
Mark Harmon
On October 31, 1994, California opened two national parks: Death Valley, and this one named for a tree said to resemble a Biblical figure.
Joshua Tree National Park