How far north did islam spread in the 600s? how far east?

What other considerations besides geographic ones did the allies have to take into account when choosing a site for the invasion?

What happened 10 million years ago? if u answer, u get 50 ! plz answer ; -;

How did the russian revolution impact world war i? a) the russians required the allied powers to come to their aid and defeat the radical groups. b) the russians pulled out from the war, enabling the germans to focus on the western front. c) the russians created new technological advancements that were used by the allied powers to win. d) the russians created a new communist government that aligned with the central powers instead.