We know this by dating the structures, evidence of life there long before anywhere else and by the Bible. You can also look into other sources of history too. There is a ton of info on Egypt provided by scrolls a old writing on stone tablets.
Because the soviets had previously signed a Non-Aggression pact with Germany and didn't expect the attack from Hitler (A.K.A Germany.)
Hoped this helped!
White men who were land owners
They also wanted India to have its own government, in which men like them would become MPs. The Indian National Congress first set out these ideas in 1885. ... Also, India was so valuable to Britain that they were reluctant to lose too much control. By the end of the First World War in 1918 British rule was still secure.