Capitol followed him home, where he greeted them in the Blue Room. Those open houses sometimes became rowdy: in 1829, President Andrew Jackson had to leave for a hotel when roughly 20,000 citizens celebrated his inauguration inside the White House. His aides ultimately had to lure the mob outside with washtubs filled with a potent cocktail of orange juice and whiskey. The practice continued until 1885, when newly elected Grover Cleveland arranged for a presidential review of the troops from a grandstand in front of the White House instead of the traditional open house. Inspired by Washington's open houses in New York and Philadelphia, John Adams began the tradition of the White House New Year's Reception. Jefferson permitted public tours of his house, which have continued ever since, except during wartime, and began the tradition of an annual reception on the Fourth of July. Those receptions ended in the early 1930s. President Bill Clinton briefly revived the New Year's Day open house in his first term. Aviation incidents In February 1974, a stolen U.S. Army helicopter landed without authorization on the White House's grounds. Twenty years later, in 1994, a light plane flown by Frank Eugene Corder crashed on the White House grounds, and he died instantly. As a result of increased security regarding air traffic in the capital, the White House was evacuated in May 2005 before an unauthorized aircraft could approach the grounds. Closure of Pennsylvania Avenue On May 20, 1995, primarily as a response to the Oklahoma City bombing of April 19, 1995, the United States Secret Service closed off Pennsylvania Avenue to vehicular traffic in front of the White House, from the eastern edge of Lafayette Park to 17th Street. Later, the closure was extended an additional block to the east to 15th Street, and East Executive Avenue, a small street between the White House and the Treasury Building. After September 11, 2001, this change was made permanent, in addition to closing E Street between the South Portico of the White House and the Ellipse. In response to the Boston Marathon bombing, the road was closed to the public in its entirety for a period of two days. The Pennsylvania Avenue closure has been opposed by organized civic groups in Washington, D.C. They argue that the closing impedes traffic flow unnecessarily and is inconsistent with the well-conceived historic plan for the city. As for security considerations,