On August 19, 1791, after departing the federal capital area, Banneker wrote a letter to Thomas Jefferson, who in 1776 had drafted the United States Declaration of Independence and in 1791 was serving as the United States Secretary of State.
Operation Jubilee, more commonly referred to as the Dieppe Raid, was an Allied assault on the German-occupied port of Dieppe, France, on 19 August 1942. The main assault lasted less than six hours until strong German defenses and mounting Allied losses forced its commanders to call a retreat.
On 22 June, the Soviets launched a strategic offensive in Belarus ("Operation Bagration") that destroyed the German Army Group Centre almost completely. The Soviet Union inflicted the biggest defeat in German military history by destroying 28 out of 34 divisions of Army Group Centre and completely shattered the German front line. The Battle ended on 19 August 1944.
Saudi Arabian Airlines Flight 163, a Lockheed L-1011, became the world's deadliest aviation accident that did not involve a crash. On August 19, 1980, The crew performed an emergency landing at Riyadh after a fire broke out in an aft baggage compartment. The fire burned through the ceiling of the compartment and into the passenger cabin. While the crew managed to land the plane safely, the captain did not stop immediately and order an evacuation. He taxied off the runway instead, by which time everyone in the cabin had become unconscious due to fumes and unable to open any doors or evacuate. All 301 passengers and crew died of suffocation before rescue ground crews could open any door, after which the aircraft burst into flames and was consumed by fire.
On August 19, 1991, Gorbachev's vice president, Gennady Yanayev, Prime Minister Valentin Pavlov, Defense Minister Dmitry Yazov, KGB chief Vladimir Kryuchkov and other senior officials acted to prevent the union treaty from being signed by forming the "General Committee on the State Emergency", which put Gorbachev – on holiday in Foros, Crimea – under house arrest and cut off his communications.
On 19 August, despite the presence of 50,000 to 200,000 Chechen civilians and thousands of federal servicemen in Grozny, the Russian commander Konstantin Pulikovsky gave an ultimatum for Chechen fighters to leave the city within 48 hours, or else it would be leveled in a massive aerial and artillery bombardment. He stated that federal forces would use strategic bombers (not used in Chechnya up to this point) and ballistic missiles. This announcement was followed by chaotic scenes of panic as civilians tried to flee before the army carried out its threat, with parts of the city ablaze and falling shells scattering refugee columns.
Google's initial public offering (IPO) took place five years later, on August 19, 2004. At that time Larry Page, Sergey Brin, and Eric Schmidt agreed to work together at Google for 20 years, until the year 2024. At IPO, the company offered 19,605,052 shares at a price of $85 per share. Shares were sold in an online auction format using a system built by Morgan Stanley and Credit Suisse, underwriters for the deal. The sale of $1.67 billion gave Google a market capitalization of more than $23 billion.
On 19 August 2014, Samsung said it had acquired U.S. air conditioner distributor Quietside LLC as part of its push to strengthen its "smart home" business. A Samsung Electronics spokesman said the South Korean company acquired 100 percent of Quietside, but declined to elaborate on the price or other details.