About how many printing presses were in europe in 1471 and 1500?

During what century did muhammad recieve his first revelation from god

What was going on with south asia before europeans came ?

How could a works-cited list a reader determine whether to believe the claims you make in an essay? a. by synthesizing your conclusions into a simple objective summary o b. by proving that your claims are supported with credible evidence ) c. by allowing you to make claims without quoting other writers o d. by providing a clear organizational structure to your essay