The Judiciary Act of 1789 is passed by Congress and signed by President George Washington, establishing the Supreme Court of the United States as a tribunal made up of six justices who were to serve on the court until death or retirement. That day, President Washington nominated John Jay to preside as chief justice, and John Rutledge, William Cushing, John Blair, Robert Harrison and James Wilson to be associate justices. On September 26, all six appointments were confirmed by the U.S. Senate.

On September 24, 1941, the Japanese consul in Hawaii is instructed to divide Pearl Harbor into five zones and calculate the number of battleships in each zone—and report the findings back to Japan.

On September 24, 1948, Mildred Gillars—the notorious American citizen known as “Axis Sally,” who had been living in Germany and broadcasting Nazi radio propaganda during World War II—pleads not guilty to eight counts of treason. Her lawyer, James J. Laughlin, tells the judge that he wants to call President Harry S. Truman as a witness, but he doesn’t say why.

Motorcycle builder Soichiro Honda incorporates the Honda Motor Company in Hamamatsu, Japan. In the 1960s, the company achieved worldwide fame for its motorcycles (in particular, its C100 Super Cub, which became the world’s best-selling vehicle); in the 1970s, it achieved worldwide fame for its affordable, fuel-efficient cars. Today, in large part because of its continued emphasis on affordability, efficiency and eco-friendliness (its internal motto is “Blue skies for our children”), the company is doing better than most.

The trial for eight antiwar activists charged with inciting violent demonstrations at the August 1968 Democratic National Convention opens in Chicago before Judge Julius Hoffman. Initially there were eight defendants, but one, Bobby Seale of the Black Panthers, denounced Hoffman as a racist and demanded a separate trial. The seven other defendants, including David Dellinger of the National Mobilization Committee to End the War in Vietnam (MOBE); Rennie Davis and Tom Hayden of MOBE and Students for a Democratic Society (SDS); and Jerry Rubin and Abbie Hoffman of the Youth International Party (Yippies), were accused of conspiring to incite a riot.

On September 24, 1988, Canadian sprinter Ben Johnson runs the 100-meter dash in 9.79 seconds to win gold at the Summer Olympics in Seoul, South Korea. Johnson’s triumph, however, was temporary: He tested positive for steroids three days later and was stripped of the medal.

More than 15 years after it was first established, the National Museum of African American History and Culture opens on the National Mall on September 24, 2016. Barack Obama, the nation’s first African American president, leads the ceremony and officially opens the museum by ringing the Freedom Bell, a bell from an African American Baptist church founded in 1776.