The Spanish conquistadors sailed over the Atlantic to conquer Mexico and Peru in the 16th century.
Japan the develope country in 1980
Answer:
It was very long, just over one-third of a mile.
It was built through hard stone called granite.
Crews built it from both ends and from the middle, and the tunnels were just two inches off.
It was 124 feet inside the mountain,.
It was built entirely by hand.
Explanation:
It
Astronomers could use radio telescopes to accurately map the positions of these O and B stars and use the Doppler shifts of the radio spectrum to determine their rates of motion. When they did this with many stars, they were able to produce combined radio and optical maps of the Milky Way's spiral arms.
