What major religion did not exist in 300 C. E

Islam

Explanation: Most historians believe that Islam originated in Mecca and Medina at the start of the 7th century CE, approximately 600 years after the founding of Christianity. Which was founded in in 1st century AD

in 1803 the louisiana purchase took place, doubling the size of the country. by 1840 almost 7 million americans had migrated westward in hopes of securing land and being prosperous. the belief that settlers were destined to expand to the west is often referred to as manifest destiny.

explanation:

ok so u have2 basically