Short answers, pulled from the story.
John Adams became the first president to occupy the White House on Saturday, the 1st of November 1800. The building had taken eight years to construct at a reported cost of $232,371.83.
Irish-born architect James Hoban designed the structure in the Neoclassical style after winning an architectural competition in July 1792. Construction began at noon on the 13th of October 1792, and reconstruction efforts led by Hoban lasted from 1815 until 1817.
On the 24th of August 1814, British forces set fire to the White House during the War of 1812. Only the exterior walls remained standing after the burning destroyed the interior and charred much of the exterior.
Eighteen children have been born at the White House including Esther Cleveland daughter of President Grover Cleveland. Two presidents William Henry Harrison and Zachary Taylor died there along with three first ladies.
On the 20th of May 1995, the United States Secret Service closed off Pennsylvania Avenue to vehicular traffic following the Oklahoma City bombing. The closure extended from Lafayette Park to 17th Street before being permanently made permanent after the 11th of September 2001.