This is false. What you described are the meridians. Parallels are from based on north and south, starting from the middle. The main parallel is the equator which divides the Earth into two hemispheres, northern and southern, with increasing numbers towards the poles.
Answer:
Although there are no right answers I'd say the Louisiana Purchase because it gave a huge amount of land and helped with transporting goods across the country. Making it easier to get resources that would otherwise take a long time to transport.
Be sure to change words and parts of my answer otherwise its just plagiarism and you could get an F.
Theodore Roosevelt became President of the United States in 1901.
B. A world history textbook. It is not a source of when the incident occurred, such as the others.