In the summer of 1800, Monroe (then governor of Virginia) received word of a pending slave rebellion outside the capital led by a slave named Gabriel. Quick action by Monroe, including sending out militia patrols and posting guards at all major public buildings, along with a surprise summer thunderstorm that flooded several of the main approaches to the city, averted the rebellion.
The Panic of 1819 was the result of a myriad of financial setbacks, including a collapse of the price of cotton and a contraction by the controversial Bank of the United States. It resulted in massive unemployment and homelessness and decimated real estate prices around the country. The Panic is usually seen as the end of the "Era of Good Feelings."