In which year was the old Hall of the House reoccupied?

The old Hall of the House was reoccupied in 1819, which marked a significant moment in the history of the U.S. Capitol. After the British burned the Capitol during the War of 1812, there were extensive repairs and renovations needed to restore the building. The reoccupation of the House of Representatives in 1819 signified a crucial step toward the Capitol's recovery and return to its legislative functions. This event allowed for Congress to resume its crucial work in the nation's capital, underscoring the resilience of the government during a period of reconstruction and reaffirming the Capitol as the heart of American democracy.

Other years provided in the options do not correspond to this significant event in the history of the Capitol. The year 1800 refers to the year when the Capitol building was first occupied, but not specifically the old Hall of the House. The year 1825 was notable for other developments in the Capitol's history, as was 1840, but neither aligns with the specific reoccupation event that occurred in 1819.