On This Day - What happened 17 May

The resulting Treaty of Zuhab of that same year decisively divided the Caucasus and adjacent regions between the two neighboring empires (Safavid Empire and the Ottoman Empire) as it had already been defined in the 1555 Peace of Amasya.

The earliest recorded organization of securities trading in New York among brokers directly dealing with each other can be traced to the Buttonwood Agreement. Previously, securities exchange had been intermediated by the auctioneers, who also conducted more mundane auctions of commodities such as wheat and tobacco. On May 17, 1792, twenty-four brokers signed the Buttonwood Agreement, which set a floor commission rate charged to clients and bound the signers to give preference to the other signers in securities sales.

By 17 May, the main Austrian army under Charles had arrived on the Marchfeld. Charles kept the bulk of his troops several kilometres away from the river bank in hopes of concentrating them at the point where Napoleon decided to cross.

On May 17 through 18, 1849, a group of workers and democrats from Trier and neighboring townships stormed the arsenal at Prüm to obtain arms for the insurgents.

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.

17 May: The meetings are moved to the bank of the Talka River, on suggestion by the police chief.

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.

The Bank for International Settlements (BIS) became an object of scrutiny when the Norwegian delegation put forth evidence that the BIS was involved in war crimes. The BIS, formed in 1930, was originally primarily intended to facilitate settling financial obligations arising from the peace treaties that concluded the First World War.

On 17 May Tito suggested that the matter be settled at the meeting of the Cominform to be held that June. However, Tito did not attend the second meeting of the Cominform, fearing that Yugoslavia was to be openly attacked.

De Gaulle hosted a superpower summit on 17 May 1960 for arms limitation talks and détente efforts in the wake of the 1960 U-2 incident between United States President Dwight Eisenhower, Soviet Premier Nikita Khrushchev, and United Kingdom Prime Minister Harold Macmillan.

Peres succeeded Rabin as party leader prior to the 1977 elections when Rabin stepped down in the wake of a foreign currency scandal involving his wife.

A SAS reconnaissance team was dispatched to carry out preparations for a seaborne infiltration. A Westland Sea King helicopter carrying the assigned team took off from HMS Invincible on the night of 17 May, but bad weather forced it to land 50 miles (80 km) from its target and the mission was aborted.

A U.S. Navy ship, Stark, was struck on 17 May 1987 by two Exocet anti-ship missiles fired from an Iraqi F-1 Mirage plane. The missiles had been fired at about the time the plane was given a routine radio warning by Stark. The frigate did not detect the missiles with radar, and warning was given by the lookout only moments before they struck. Both missiles hit the ship, and one exploded in crew quarters, killing 37 sailors and wounding 21.

The movement, on the wane at the end of April, now regained momentum. By 17 May, as students from across the country poured into the capital to join the movement, protests of varying sizes were occurring in some 400 Chinese cities. Students demonstrated at provincial party headquarters in Fujian, Hubei, and Xinjiang. Without a clearly articulated official position from the Beijing leadership, local authorities did not know how to respond. Because the demonstrations now included a wide array of social groups, each carrying its own set of grievances, it became increasingly unclear with whom the government should negotiate, and what the demands were.

The situation seemed intractable, so the weight of taking decisive action fell on paramount leader Deng Xiaoping. Matters came to a head on 17 May, during a Politburo Standing Committee meeting at Deng's residence. At the meeting, Zhao Ziyang's concessions-based strategy was thoroughly criticized.

On the evening of 17 May, the PSC met at Zhongnanhai to finalize plans for martial law. At the meeting, Zhao announced that he was ready to "take leave", citing he could not bring himself to carry out martial law. The elders in attendance at the meeting, Bo Yibo and Yang Shangkun, urged the PSC to follow Deng's orders. Zhao did not consider the inconclusive PSC vote to have legally binding implications on martial law; Yang Shangkun, in his capacity as Vice Chairman of the Central Military Commission, went on to mobilize the military to move into the capital.

Maradona era in Napoli included the UEFA Cup in 1989. The 1989 UEFA Cup Final was a football tie played on 3 May 1989 and 17 May 1989 between S.S.C. Napoli of Italy and VfB Stuttgart of West Germany. Napoli won 5–4 on aggregate.

The United Nations High Commissioner for Refugees (UNHCR) began hearing concrete accounts of atrocities and made this information public on 17 May.

On 17 May 1994, the UN passed Resolution 918, which imposed an arms embargo and reinforced UNAMIR, which would be known as UNAMIR II. The new soldiers did not start arriving until June, and following the end of the genocide in July, the role of UNAMIR II was largely confined to maintaining security and stability, until its termination in 1996.

First Champions League Leo Messi achieved with FC Barcelona against Arsenal with "2:1".

On 17 May 2007, the government rejected a plea made by RCTV to stop the TV station's forced shutdown.

Roma won the Coppa Italia final against league champions Inter with a 6–2 victory at home (Totti scored the opening goal after 50 seconds) and a 2–1 defeat at the San Siro in Milan.

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 8 May 2018, the government of the Democratic Republic of the Congo reported two confirmed cases of Ebola infection in the northwestern town of Bikoro. On 17 May, a case was confirmed in the city of Mbandaka. Health authorities are planning to ring vaccinate with rVSV-ZEBOV, a recently developed experimental Ebola vaccine, to contain the outbreak. The outbreak is ongoing as of 24 June 2018, in 2014 a different area of Equateur province was affected On July 24, 2018, the outbreak was declared over. This resulted in 54 infections and 33 deaths.

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.

On 17 May 2019, Huawei voluntarily suspended its membership to JEDEC, as a temporary measure, "until the restrictions imposed by the U.S. government are removed".

The Queen consort of King George IV, Caroline of Brunswick, was born in the Holy Roman Empire.

The English general Henry Paget was born in London in 1768.