On This Day - What happened on this day in United States of America

Physicist William Arnold Anthony (who tested the motor) and Electrical World magazine editor Thomas Commerford Martin arranged for Tesla to demonstrate his AC motor on 16 May 1888 at the American Institute of Electrical Engineers.

In 1906 Carrier discovered that "constant dew-point depression provided practically constant relative humidity," which later became known among air conditioning engineers as the "law of constant dew-point depression". On this discovery he based the design of an automatic control system, for which he filed a patent claim on May 17, 1907. U.S. Patent 1,085,971 was issued on February 3, 1914.

Rescue efforts performed by the Chinese government were praised by western media, especially in comparison with Myanmar's blockage of foreign aid during Cyclone Nargis, as well as China's previous performance during the 1976 Tangshan earthquake. China's openness during the media coverage of the Sichuan earthquake led a professor at Peking University to say, "This is the first time [that] the Chinese media has lived up to international standards". Los Angeles Times praised China's media coverage of the quake as being "democratic".

On May 17, 2009, President Barack Obama's Secretary of the Interior, Ken Salazar, announced that as a "special gift" to America, the statue would be reopened to the public as of July 4, but that only a limited number of people would be permitted to ascend to the crown each day.

Facebook's initial public offering came on May 17, 2012, at a share price of US$38. The company was valued at $104 billion, the largest valuation to that date.

DC Entertainment announced a new identity and logo for another iconic DC Comics universe brand on May 17, 2016. The new logo was first used on May 25, 2016, in conjunction with the release of DC Universe: Rebirth Special #1 by Geoff Johns.

On May 17, 2018, YouTube announced the re-branding of YouTube Red as YouTube Premium (accompanied by a major expansion of the service into Canada and 13 European markets), as well as the upcoming launch of a separate YouTube Music subscription.

Physicist William Arnold Anthony (who tested the motor) and Electrical World magazine editor Thomas Commerford Martin arranged for Tesla to demonstrate his AC motor on 16 May 1888 at the American Institute of Electrical Engineers.

In 1906 Carrier discovered that "constant dew-point depression provided practically constant relative humidity," which later became known among air conditioning engineers as the "law of constant dew-point depression". On this discovery he based the design of an automatic control system, for which he filed a patent claim on May 17, 1907. U.S. Patent 1,085,971 was issued on February 3, 1914.

Rescue efforts performed by the Chinese government were praised by western media, especially in comparison with Myanmar's blockage of foreign aid during Cyclone Nargis, as well as China's previous performance during the 1976 Tangshan earthquake. China's openness during the media coverage of the Sichuan earthquake led a professor at Peking University to say, "This is the first time [that] the Chinese media has lived up to international standards". Los Angeles Times praised China's media coverage of the quake as being "democratic".

On May 17, 2009, President Barack Obama's Secretary of the Interior, Ken Salazar, announced that as a "special gift" to America, the statue would be reopened to the public as of July 4, but that only a limited number of people would be permitted to ascend to the crown each day.

Facebook's initial public offering came on May 17, 2012, at a share price of US$38. The company was valued at $104 billion, the largest valuation to that date.

DC Entertainment announced a new identity and logo for another iconic DC Comics universe brand on May 17, 2016. The new logo was first used on May 25, 2016, in conjunction with the release of DC Universe: Rebirth Special #1 by Geoff Johns.

On May 17, 2018, YouTube announced the re-branding of YouTube Red as YouTube Premium (accompanied by a major expansion of the service into Canada and 13 European markets), as well as the upcoming launch of a separate YouTube Music subscription.