1970 to 1979
April 1, 1970 - For the first time, the 1970 census counted over 200 million people living in the United States. The 13.4% increase since the last census indicated that a 203,302,031 population now called the U.S.A. home. It had taken only fifty years to go from the first 100 million census in 1920 to the second. Once again, the geographic center of the United States population was in Illinois, five miles east southeast of Mascoutah.
April 22, 1970 - The first Earth Day celebration is held with millions of Americans participating in anti-pollution demonstrations. These demonstrations included school children walking to school instead of riding the bus.
May 4, 1970 - Four students from Kent State University in Ohio were killed and nine wounded by National Guardsmen during a protest against the Vietnam War spread into Cambodia.
January 2, 1971 - A ban on the television advertisement of cigarettes goes into effect in the United States. (1.13 & 1.20 & 1.03)
Doctor’s choice: https://www.youtube.com/watch?v=D-y_N4u0uRQ
October 1, 1971 - Walt Disney World opens in Orlando, Florida, expanding the Disney Empire to the east coast of the United States.
January 22, 1973 - The United States Supreme Court rules in Roe vs. Wade that a woman cannot be prevented by a state in having an abortion during the first six months of pregnancy.
June 9, 1973 - In one of the most awesome displays of dominance in sports history, Secretariat, wins the Belmont Stakes by 31 lengths, winning the Triple Crown of United States Thoroughbred Racing for the first time since 1948. (3.57) https://www.youtube.com/watch?v=V18ui3Rtjz4
July 29, 1976 - New York City witnesses a serial killer called the Son of Sam. David Berkowitz randomly killed innocent people until his capture on July 31, 1977. (12.16) https://www.youtube.com/watch?v=MaB6Te2YdAQ
November 26, 1976 - Microsoft becomes a registered trademark, one year after its name for microcomputer software is first mentioned by Bill Gates to Paul Allen in a letter.
May 25, 1977 - Star Wars opens and becomes the highest grossing film at the time. (2.01) https://www.youtube.com/watch?v=XHk5kCIiGoM
July 13, 1977 - The New York City blackout results in massive looting and disorderly conduct during its twenty-five hour duration. (7.40) https://www.youtube.com/watch?v=vCzUbcykxOc
March 28, 1979 - An accident at the Three Mile Island nuclear power plant in Middletown, Pennsylvania occurs when a partial core meltdown is recorded. A tense situation ensued for five days until the reactor was deemed under control. It is the largest accident in U.S. nuclear power history and considered the worst in the world until the Soviet Chernobyl accident seven years later.