What was a key event associated with the Hartford Convention?

The Hartford Convention, which took place in late 1814 to early 1815, was significant because it involved a series of meetings among New England Federalists who were discontented with the ongoing War of 1812 and its impact on their region. One of the critical discussions during this convention was about the possibility of New England states seceding from the Union. The war had caused significant economic distress in New England, leading many Federalists to feel that their political and economic interests were being overlooked by the federal government. Therefore, option A accurately reflects this key event and the context of the Hartford Convention, where concerns about state rights and the prospect of secession were significant points of debate.

The other choices do not accurately represent the main focus of the Hartford Convention. The establishment of the Federalist Party occurred much earlier in the late 18th century, the declaration of war against Britain was a separate event which took place in 1812 prior to the convention, and the formation of a stronger national bank was not a direct concern of the Federalists at the time of the convention; rather, it was part of earlier financial policies implemented by figures like Alexander Hamilton.