Final answer:
The White House took approximately 8 years to build, from 1792 to 1800. It was then burned in 1814 but rebuilt, symbolizing a significant period in American history.
Step-by-step explanation:
The White House was constructed over a period beginning in 1792 and ending in 1800, making the construction process about 8 years in duration.
The building was then burned by the British during the War of 1812, specifically in 1814, but was subsequently rebuilt.
The White House is an emblematic structure of American history and has subsequently undergone numerous renovations and expansions, evolving with the times and needs of successive presidential administrations.