In what year did President Johnson announced that the Union was restorted

1866

Explanation:

President Johnson announced in 1866

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.

6 units. ab and lo are congruent sides, and if ab= 6 units, then lo would be the same.