What happened September 1940 AD

In September 1936, Kennedy enrolled at Harvard College.

In September 1940, the British and American governments concluded the Destroyers for Bases Agreement, by which fifty American destroyers were transferred to the Royal Navy in exchange for free US base rights in Bermuda, the Caribbean, and Newfoundland. An added advantage for Britain was that its military assets in those bases could be redeployed elsewhere. Churchill's good relations with United States President Franklin D. Roosevelt helped secure vital food, oil, and munitions via the North Atlantic shipping routes. It was for this reason that Churchill was relieved when Roosevelt was re-elected in 1940.

On 7 September the systematic nightly bombing of London began. The German Luftwaffe failed to defeat the Royal Air Force in what became known as the Battle of Britain.

The Luftwaffe altered its strategy from 7 September 1940 and began to bomb London, at first in daylight raids and then, after their losses became unacceptably high, at night. The raids were soon extended to provincial cities such as the notorious attack on Coventry on 14 November. The Blitz was especially intensive through October and November. It can be said to have continued for eight months, by which time Hitler was ready to launch Operation Barbarossa, the invasion of the USSR. The Luftwaffe failed its objective of reducing British war production, which actually increased. Churchill's morale during the Blitz was generally high and he told his private secretary John Colville in November that he thought the threat of invasion was passed. He was confident that Great Britain could hold its own, given the increase in output, but was realistic about its chances of actually winning the war without American intervention.

The Italian invasion of Egypt (Operazione E) was an offensive in the Second World War, against British, Commonwealth and Free French forces in Egypt. The invasion by the Italian 10th Army (10ª Armata) ended border skirmishing on the frontier and began the Western Desert Campaign (1940–1943) proper. The goal of the Italian forces in Libya was to seize the Suez Canal by advancing along the Egyptian coast. After numerous delays, the scope of the offensive was reduced to an advance as far as Sidi Barrani, with attacks on British forces in the area. It lasted from 9 September to 16 September.

On 15 September 1940, known as the Battle of Britain Day, an RAF pilot, Ray Holmes of No. 504 Squadron RAF rammed a German Dornier Do 17 bomber he believed was going to bomb the Palace. Holmes had run out of ammunition and made the quick decision to ram it. Holmes bailed out and the aircraft crashed into the forecourt of London Victoria station.

Japan launched its invasion of French Indochina, mirroring its ally Germany's conquest of metropolitan France.

To increase pressure on China by blocking supply routes, and to better position Japanese forces in the event of a war with the Western powers, Japan invaded and occupied northern Indochina. Afterwards, the United States embargoed iron, steel and mechanical parts against Japan.

During the Second World War, the Palace of Westminster was hit by bombs on fourteen separate occasions. One bomb fell into Old Palace Yard on 26 September 1940 and severely damaged the south wall of St Stephen's Porch and the west front.

On 27 September 1940, the Tripartite Pact was signed in Berlin by Saburō Kurusu of Imperial Japan, Hitler, and Italian foreign minister Ciano, and later expanded to include Hungary, Romania, and Bulgaria, thus yielding the Axis powers.

On September 27, 1940, ostensibly under Hirohito's leadership, Japan was a contracting partner of the Tripartite Pact with Germany and Italy forming the Axis Powers.

At the end of September 1940, the Tripartite Pact formally united Japan, Italy, and Germany as the Axis Powers.