The coal strike during what year was one of the largest in the nation’s history?

It was the Anthracite Strike which took place in 1902 during the summer and into the fall.

Explanation:

In 1902, the United Mine Workers convoked a strike in the anthracite coal fields in Pennsylvania. People supported the workers, who asked for better working conditions, better payments as well as the recognition of their union.

As a result of this, schools and businesses had to close because there was no coal for heating.

Roosevelt was not concerned with this kind of affairs but he achieved to meet members of both sides and take them to a meeting in the White House. Thanks to Roosevelt's engagement an arrangement was made and the strike ended on March 1903 and the miners achieved a wage increase.

b) a state law could be declared illegal if it contradicted the constitution.

explanation:

the conflict of this case originated when james w. mcculloch, a cashier of the baltimore branch of the second bank of the united states that the congress had chartered in 1816, refused to pay a tax imposed by the maryland state.

in the case, the state of maryland appealed that the establishment of a second bank was unconstitutional since the constitution didn't say anything about granting that power to congress. however, the case determined that even if such right wasn't specifically stated in the constitution, it was part of the "implied powers" of the government enunciated in article i, section 8.

the case also eliminated maryland's legislation to impose taxes to a national bank, asserting that even though the states retained the power of taxation, the constitution's laws are supreme and can not be controlled by the states, therefore, if a state law contradicts the constitution, it should be declared illegal.

explanation: