Which event is associated with the year 1700-1721?

The Great Northern War is associated with the years 1700 to 1721, as it marked a significant conflict primarily involving Sweden against a coalition that included Russia, Denmark-Norway, and Saxony-Poland. The war began in 1700 and concluded in 1721 with the Treaty of Nystad. This conflict resulted in the decline of Swedish power and the rise of Russia as a major player in European politics, establishing Peter the Great's efforts at modernizing his military and expanding Russian territories.

The other events listed occurred outside of this timeframe. The English Civil War took place primarily between 1642 and 1651, the French and Indian War occurred from 1754 to 1763, and the Battle of Bull Run was fought during the American Civil War in 1861. This chronological distinction reinforces the association of the Great Northern War specifically with the early 18th century.