The Fourteenth and Fifteenth Amendments were written and
ratified because

These amendments were intended to guarantee the freedom of former slaves and to establish and prevent discrimination in certain civil rights to former slaves and all citizens of the United States. The Fourteenth Amendment, adopted in 1868, defines all people born in the United States as citizens, requires due process of law, and requires equal protection to all people. The Fifteenth Amendment, ratified in 1870, prevents the denial of a citizen's vote based on race, color, or previous condition of servitude

Explanation:

tenochtitlan (also spelled tenochtitlán), located on an island near the western shore of lake texcoco in central mexico, was the capital city and religious centre of the aztec civilization. the traditional founding date of the city was 1345 ce and it remained the most important aztec centre until its destruction at the hands of the conquering spanish led by hernán cortés in 1521 ce, which led to the final collapse of the aztec empire.