What happened 9 May in United States of America

He was promoted to lieutenant (junior grade) on May 9, 1953.

The House Judiciary Committee opened impeachment hearings against the President on May 9, 1974, which were televised on the major TV networks. These hearings culminated in votes for impeachment.

On 9 May 2012, mSpot announced that it had been acquired by Samsung Electronics with the intention of a cloud based music service. The succeeding service was Samsung Music Hub.

On May 9, Uber and Lyft cease operations in Austin, Texas. This is in response to a city ordinance upheld by Austin voters on May 7 that would require drivers for Uber, Lyft, and other transportation network companies to get fingerprint checks, to have their vehicles labeled, and to not pick up and drop off in certain city lanes.

On May 9, 2017, Trump dismissed FBI director James Comey. He first attributed this action to recommendations from Attorney General Jeff Sessions and Deputy AG Rod Rosenstein, which criticized Comey's conduct in the investigation about Hillary Clinton's emails.