Galileo Galilei developed a stronger telescope and was able to prove that Ptolemy's theories about the moon were wrong.
The deepest know spot in the ocean is <span>6.77 miles deep</span>
Answer:
Historians did not learn much about the Harappan civilization from written sources because its writing system has not yet meen figured out. They learned much from building remains, like the drainage system, and where grains were stored.
Explanation:
Answer:
Christopher Columbus introduced horses, sugar plants, and disease to the New World, while facilitating the introduction of New World commodities like sugar, tobacco, chocolate, and potatoes to the Old World. The process by which commodities, people, and diseases crossed the Atlantic is known as the Columbian Exchange.
Explanation:
Greek democracy created Athens
