September 1938- after the Sudetenland agreement, Neville Chamberlain orders rearmament to prepare for war with Germany.
February 1939- After Albert Einstein tells Chamberlain about the possibility of harnessing an atomic reaction as a weapon, a Commons select committee on science is established to investigate the claims.
March 5- Einstein is summoned by the house of commons to testify about the feasibility of such a weapon. The Atomic bomb project has begun in earnest.
March 9- Einstein begins work on Project Cairo, named after the city where it begins.
September 3- WW2 breaks out after Germany invades Poland. The atomic bomb programme is sped up.
May- The Phoney war ends with German annexation of much of western Europe. Only the British Empire stands in the way of Hitler's ambitions. As a result of these attacks, Cairo is sped up and the new prime minister Winston Churchill vows "we shall never surrender".
June 18- on rumors that the British are developing a superweapon, Hitler orders Operation: Sealion to go into effect. The battle of Britain begins. Spies begin to reveal information about Cairo. When that is revealed to MI5, they decide to evacuate Cairo and continue the project in South Africa.
January 5- The Japanese abandon China and move the bulk of their armies to Manchuria and its occupied territories.
June 22- Operation Barbarossa commences.
December 7- the Japanese launch a seaborne invasion of Hawaii. The USA joins the war on the British side, although their main task is fighting the Japanese and not the Germans. The Soviet Union also declares war on Japan
December 25- a British atomic pile is being built in Rhodesia. Churchill learns of this in Chequers and orders production of ten nuclear bombs.
May 3- the Japanese are pushed out of Hawaii after the battle of Honolulu. The Soviets march into Manchuria, although they encounter stiff resistance and trench warfare begins to settle in.
July 8 the USA starts sending fighters, tanks and supplies to the Soviets (in TTL, the Americans also received Einstein's letter and were working on their own nuclear bomb and they had developed the F-86 several years earlier in an arms race with Japan)
August-Einstein discusses plans to build missiles to launch the bombs.
September- The NM-1 is tested but there are flaws in the designs that many scientists note. Einstein begins work on the NM-2.
February 5- A successful nuclear reaction takes place in Rhodesia, but there is only enough heavy water to make three atomic bombs at the moment.
April 23- A successful nuclear bomb test is reported in the African desert.
May 5- More Atomic bombs are built - three are ready for use.
June 1- Berlin is flattened in a 10 KT blast Hitler survives but several high government politicians like Himmler, Göring and Göbbels are dead along with millions of others.
June 2- Britain declares it has another bombs and calls on the Axis to surrender.