Germany Invades Poland (1939)

After staging Polish attacks on German forces to create the appearance of Polish aggression, Germany invaded Poland, beginning WWII. Britain and France declared war on Germany two days later, and all the members of the Commonwealth of Nations, with the exception of Ireland, rapidly followed suit. The German blitzkrieg crushed the Polish defenses. Within a month all of Poland was occupied by German forces as well as the forces of what state with whom Germany had just signed a non-aggression pact? Discuss

Death of Diana, Princess of Wales (1997)

Diana’s beauty and unprecedented popularity as a member of the royal family attracted intense press attention, and she became one of the most photographed women in the world. After her divorce from Prince Charles in 1996, she remained highly visible and continued her activities on behalf of numerous charities. In 1997, she was killed in a car crash in Paris, along with her companion, Dodi al-Fayed, and their driver. Who was blamed for the accident in subsequent investigations? Discuss

US Air Force Nuclear Weapons Incident (2007)

In 2007, six cruise missiles with nuclear warheads were mistakenly loaded onto a US Air Force bomber and transported from Minot Air Force Base in North Dakota to Barksdale Air Force Base in Louisiana without the knowledge the flight crew. A military investigation of the incident found that a number of procedures for handling nuclear weapons had been carried out improperly by numerous service members. Disciplinary actions were taken against many officers, including what high-ranking officials? Discuss

Caleb Davis Bradham Begins Selling "Pepsi-Cola" (1898)

Bradham was a pharmacist who invented a soft drink made with kola nut extract, vanilla, and “rare oils.” He believed his drink aided digestion and renamed it “Pepsi-Cola” after the kola nut and pepsin, an enzyme that aids in digestion. In 1902, he incorporated the Pepsi-Cola Co, and, in 1931, the trademark and assets were bought by Charles Guth, who improved the formula and marketed a 12-ounce bottle for five cents with huge success. What did Bradham originally call his drink? Discuss

Mars Makes Its Closest Approach to Earth in Nearly 60,000 Years (2003)

In its most favorable position for viewing, when it is opposite the Sun, Mars is twice as bright as the brightest star in the sky. The Red Planet was even more visible in 2003, when it made its closest approach to Earth in nearly 60,000 years, passing within 35 million mi (56 million km) of us. An email sent during the 2003 approach has spawned hoax emails saying that during an upcoming approach Mars will appear as big as the Moon. When is the next time Mars will be as close as it was in 2003? Discuss

National Assembly of Quebec Adopts the Charter of the French Language (1977)

In 1976, the Parti Québécois, a party of French-Canadian nationalists formed in 1970, won control of the provincial parliament. Among its first acts was the passage of La charte de la langue française—the Charter of the French Language. Also known as Bill 101, the controversial legislation made French the official language of Quebec and prohibited the use of English on signs and in most commercial transactions. What effect did the charter have on businesses in Quebec? Discuss

WWII: The Liberation of Paris (1944)

The Liberation of Paris is considered the last battle of the Normandy Campaign to free France from German occupation. In July, about a month after the Allied invasions of southern France and Normandy, Allied ground troops finally broke out of the beachheads and began a rapid advance across northern France. With help from the French resistance, Free French and US forces and liberated Paris in August. Why did the German military governor of Paris disobey Hitler’s order to leave the city in ruins? Discuss

Pluto Gets Demoted (2006)

Although it was recognized as a planet for decades, Pluto is much smaller than the other planets in our solar system and more closely resembles a giant comet nucleus. Consequently, the International Astronomical Union demoted Pluto to the category of dwarf planet, which reflected astronomers’ conclusion that it is a member of the Kuiper belt, a strip of billions of icy bodies orbiting the Sun beyond the orbit of Neptune. What is a “plutino”? Discuss

Sacco and Vanzetti Are Executed (1927)

The 1920 armed robbery and murder trial of the young Italian immigrants Nicola Sacco and Bartolomeo Vanzetti was one of the most controversial in US history. Though some believed the verdict was just, others argued that the two men were innocent and were only found guilty because they were immigrants and political radicals. Their defenders waged a fierce legal and public relations battle to save the men’s lives, but they were executed in 1927. What declaration about the verdict was made in 1977? Discuss

The Big Burn (1910)

The Great Fire of 1910 was a wildfire that burned approximately three million acres (12,000 sq km) in Washington, Idaho, and Montana. Spurred by hurricane-force winds, it destroyed parts of several national forests. Since known as the Big Burn, the firestorm burned over two days and killed more than 80 people, including 78 firefighters. It is believed to be the largest, although not the deadliest, fire in US history. How did the Great Fire of 1910 shape future US Forest Service policy? Discuss