Answer:
A. Nurses, they helped take if the soldiers, B. Doctors were obviously important.
It began in the year 1941
Roman concrete is very similar to what we use today. It was used to build structures and many buildings. It was revolutionary at the time as not many things were made of something such a concrete. The Romans proved to be much more advanced than other people and a leader in the world at the time.
France began work on the canal in 1881 but stopped due to engineering problems and a high worker mortality rate. The United States took over the project in 1904, and opened the canal on August 15, 1914. One of the largest and most difficult engineering projects ever undertaken, the Panama Canal shortcut greatly reduced the time for ships to travel between the Atlantic and Pacific Oceans, enabling them to avoid the lengthy, hazardous Cape Horn<span> route around the southernmost tip of </span>South America<span> via the </span>Drake Passage<span> or </span>Strait of Magellan<span>. The french started it but americans finished it SO THE ANSWER IS FRENCH AND AMERICA</span>
