What was unknown in europe before european explorers visited the americans

Aman with a genetic disease marries a woman who does not carry the disease. it is not possible for their sons to have the disease. the disease. it is not possible for their so s to have the disease. the disease must be

Began during presidency of john q. adams tariff of 1828 and 1832 states’ rights versus federal authority john c. calhoun’s ‘proclamation to the people of south carolina’ concluded during the presidency of andrew jackson is which event are these characteristics describing

Which of these is the modern day result of spain colonization of the americans?