Who declare war on hitler after the invasion of poland

How did the location of islamic lands make cultural diffusion possible

Which statement can be said to be true after examining this map? (1 point) christianity remained popular in egypt after 400 ad. christianity was the only religion in the roman empire until 476 ad. christianity expanded in the roman empire after 325 ad. christianity did not expand beyond the boundaries of the roman empire by 476 ad

What were two theories put forth by marx?