How fantasy and hubris swept through Los Angeles and led to one of the deadliest engineering disasters in American history. Watch FLOOD IN THE DESERT Tue May 3 at 9/8c → pbs.org/wgbh/americanexperience/films/flood-desert | American Experience | PBS

After nearly five years of negotiations, representatives of the United States, North Vietnam, South Vietnam, and the communist Provisional Revolutionary Government signed the Paris Peace Accords, calling for a ceasefire in Vietnam and the withdrawal of U.S. troops, on January 27, 1973. The United States and Hanoi entered preliminary peace talks in 1968, as growing numbers of Americans protested the war. Harvard professor Henry Kissinger, eager to secure a role in the next administration, shared

In his final race before retirement, seven-year-old Seabiscuit took one last stab at the contest that had twice eluded him, the Santa Anita Handicap, on March 2, 1940. Clocking the fastest mile-and-a-quarter in the track's history, Seabiscuit won the race and its $121,000 prize. The thoroughbred hadn't always been a champion, but trainer Tom Smith saw his potential as a young horse and turned him into a winner. | American Experience | PBS