What is the oldest casino on the Strip?
The Flamingo is the oldest casino on the Vegas Strip. It first opened in 1946 and has undergone many changes over the past 70(!) years.
How did casinos start in Las Vegas?
Thomas Hull is credited with opening the first hotel-resort, El Rancho Vegas, on the Las Vegas Strip in 1941. However, it was New York City gangster Bugsy Siegel who gave Vegas its first taste of the larger-than-life casinos that would soon dominate the area. His casino, The Flamingo, opened in 1946.