Check most memorable events 15 August in United States of America.
His first flight in a rocket-powered aircraft was on August 15, 1957, in the Bell X-1B, to an altitude of 11.4 miles (18.3 km). On landing, the poorly designed nose landing gear failed, as had happened on about a dozen previous flights of the Bell X-1B.

The group's third US tour opened with a performance before a world-record crowd of 55,600 at New York's Shea Stadium on 15 August 1965 – "perhaps the most famous of all Beatles' concerts", in Lewisohn's description
U.S. Government institutes Phase I price controls. Invoking the powers granted to the president by the Economic Stabilization Act of 1970, President Richard Nixon orders a 90-day nationwide freeze on all wages, prices, salaries, and rents.
On August 15, 2011, Google made its largest-ever acquisition to date when it announced that it would acquire Motorola Mobility for $12.5 billion This purchase was made in part to help Google gain Motorola's considerable patent portfolio on mobile phones and wireless technologies, to help protect Google in its ongoing patent disputes with other companies, mainly Apple and Microsoft, and to allow it to continue to freely offer Android.
His first flight in a rocket-powered aircraft was on August 15, 1957, in the Bell X-1B, to an altitude of 11.4 miles (18.3 km). On landing, the poorly designed nose landing gear failed, as had happened on about a dozen previous flights of the Bell X-1B.

The group's third US tour opened with a performance before a world-record crowd of 55,600 at New York's Shea Stadium on 15 August 1965 – "perhaps the most famous of all Beatles' concerts", in Lewisohn's description
U.S. Government institutes Phase I price controls. Invoking the powers granted to the president by the Economic Stabilization Act of 1970, President Richard Nixon orders a 90-day nationwide freeze on all wages, prices, salaries, and rents.
On August 15, 2011, Google made its largest-ever acquisition to date when it announced that it would acquire Motorola Mobility for $12.5 billion This purchase was made in part to help Google gain Motorola's considerable patent portfolio on mobile phones and wireless technologies, to help protect Google in its ongoing patent disputes with other companies, mainly Apple and Microsoft, and to allow it to continue to freely offer Android.