Frank Corder crashes a small Cessna into the South Lawn, killing himself.
Francisco Duran fires 29 rounds at the mansion before bystanders tackle him.
An unknown shooter fires at least four bullets at the White House. One pierces the State Dining Room.
Police shoot and kill a homeless man who brandishes a knife near the Pennsylvania Ave. fence in front of the White House.
An armed intruder and a uniformed Secret Service officer are shot during a struggle on the South Lawn.
An unarmed man scales the fence is quickly apprehended.
President Jefferson personally opens the mansion doors to tourists.
The South Lawn is closed to the public when President Grant’s wife complains about the crowd of “curious loungers.”
To strengthen security during World War II, West Executive Ave. – a small street within 200 feet of the Oval Office–is closed to traffic.
A bombproof sub-basement is built.
After the bombing of marines in Beirut, concrete posts are erected on the Pennsylvania Ave, sidewalk to help prevent car bombings.
Sharpshooters are deployed on building’s roof, and bulletproof glass is installed.
After the Oklahoma car bombing, the administration closes Pennsylvania Ave to the 26,000 that pass daily.
