Red_Dragon wrote:
 

And if you can remember the sign reading "MORE THAN ONE BILLION SERVED" you're definitely old...

1940 – McDonald's opens its first restaurant in San Bernardino, California.

1911 – In Standard Oil Co. of New Jersey v. United States, the United States Supreme Court declares Standard Oil to be an "unreasonable" monopoly under the Sherman Antitrust Act and orders the company to be broken up.

1718 – James Puckle, a London lawyer, patents the world's first machine gun.

1973 – Skylab, the United States' first space station, is launched.

1878 – The last witchcraft trial held in the United States begins in Salem, Massachusetts, after Lucretia Brown, an adherent of Christian Science, accused Daniel Spofford of attempting to harm her through his mental powers.

• 1960  USSR launch 1st (unmanned) space capsule

1985 – Police bombed MOVE headquarters in Philadelphia to end a stand-off, killing six adults and five children, and destroying the homes of 250 city residents.

1949 – EDSAC, the first practical electronic digital stored-program computer, runs its first operation.

1961 – Alan Shepard becomes the first American to travel into outer space, on a sub-orbital flight.

1925 – Scopes Trial: Serving of an arrest warrant on John T. Scopes for teaching evolution in violation of the Butler Act.

1904 – Pitching against the Philadelphia Athletics at the Huntington Avenue Grounds, Cy Young of the Boston Americans throws the first perfect game in the modern era of baseball.

 Red_Dragon wrote: 
Nixon the, Trump now. What goes around comes around, it would seem.  

1970 – Vietnam War: Kent State shootings: The Ohio National Guard, sent to Kent State University after disturbances in the city of Kent the weekend before, opens fire killing four unarmed students and wounding nine others. The students were protesting the Cambodian Campaign of the United States and South Vietnam.

1886 – Haymarket affair: A bomb is thrown at policemen trying to break up a labor rally in Chicago, United States, killing eight and wounding 60. The police fire into the crowd.

1978 – The first unsolicited bulk commercial email (which would later become known as "spam") is sent by a Digital Equipment Corporation marketing representative to every ARPANET address on the west coast of the United States.

1956 – The polio vaccine developed by Jonas Salk is made available to the public.

1886 – Rallies are held throughout the United States demanding the eight-hour work day, culminating in the Haymarket affair in Chicago, in commemoration of which May 1 is celebrated as International Workers' Day in many countries.

1786 – In Vienna, Austria, Mozart's opera The Marriage of Figaro is performed for the first time.

1967 – After refusing induction into the United States Army the previous day, Muhammad Ali is stripped of his boxing title.