Which historical events are responsible for bringing about the Columbian Exchange ?

When Christopher Columbus and his crew arrived in the New World, two biologically distinct worlds were brought into contact.

Explanation:

i do not know if this question has options, but a main impact of the federal reserve act of 1913, which created the federal reserve bank, was the international use of the u.s. dollar, which soon became the world's leading currency - particularly during world war i, since many nations around the world asked the united states for money.

i believe he was the 5th king of uruk. so c