Answer:
c more highly skilled workers were needed.
Because History has many secrets and everyday historians are finding out more about history than we could have ever imagined. plus history is always changing so there is always gonna be something new thatsomeone could learn from history
The Second Barons' War (1264–1267) was a civil war in England between the forces of a number of barons led by Simon de Montfort against the royalist forces of King Henry III, led initially by the king himself and later by his son, the future King Edward I. The barons sought to force the king to rule with a council of barons rather than through his favourites.
B they had finish part of it in 1869 and it had taken them six years so that means they started building it in 1863. Then they had continued after that but it was small sections of them adding to the existing railroad.
the 36°30' line, except for Missouri
