On This Day - What happened 22 March

The emperor at the beginning of the year was Maximinus Thrax, who had ruled since 235. Later sources claim he was a cruel tyrant, and in January of 238, a revolt erupted in North Africa.

A demilitarized zone was to be created, extending from the new demarcation line to 5 kilometres (3.1 mi) beyond the line. The demilitarized zone represented the extent of Romanian territorial requests on Hungary. The retreat of the Hungarian army behind the western border of the demilitarized zone was to begin on 22 March.

Dachau, the first Nazi concentration camp, opened on 22 March 1933, shortly after Adolf Hitler (1889-1945) became chancellor of Germany.

From March 22nd, Jews were required to wear the yellow star; were forbidden from owning cars, bicycles, radios, or telephones; and were later forced into ghettos.

On March 22, 1956, he was in a Boeing B-29 Superfortress, which was to air-drop a Douglas D-558-2 Skyrocket. He sat in the right-hand pilot seat while the left-hand seat commander, Stan Butchart, flew the B-29. As they climbed to 30,000 feet (9 km), the number-four engine stopped and the propeller began windmilling (rotating freely) in the airstream. Hitting the switch that would stop the propeller's spinning, Butchart found it slowed but then started spinning again, this time even faster than the others; if it spun too fast, it would break apart. Their aircraft needed to hold an airspeed of 210 mph (338 km/h) to launch its Skyrocket payload, and the B-29 could not land with the Skyrocket attached to its belly. Armstrong and Butchart brought the aircraft into a nose-down attitude to increase speed, then launched the Skyrocket. At the instant of launch, the number-four engine propeller disintegrated. Pieces of it damaged the number-three engine and hit the number-two engine. Butchart and Armstrong were forced to shut down the damaged number-three engine, along with the number-one engine, due to the torque it created. They made a slow, circling descent from 30,000 ft (9 km) using only the number-two engine, and landed safely.

On 22 March, the NVA opened the siege of Huế. Civilians flooded the airport and the docks hoping for any mode of escape.

On 22 March 1976, Qaboos bin Said married his first cousin, Kamila née Sayyida Nawwal bint Tariq Al Said (born 1951), daughter of Sayyid Tariq bin Taimur Al Said and his second wife, Sayyida Shawana bint Nasir Al Said. The marriage ended in divorce in 1979. She remarried in 2005. The marriage produced no heirs, and Qaboos bin Said wrote secret documents naming the successor to his realm.

After the failure at Rambouillet and the alternative Yugoslav proposal, international monitors from the OSCE withdrew on 22 March, to ensure their safety ahead of the anticipated NATO bombing campaign.

On 22 March 2010, Maradona was chosen number 1 in The Greatest 10 World Cup players of all time by the London-based newspaper The Times.

Amazon launches the Amazon Appstore for Android devices and the service was made available in over 200 countries.

On 22 March 2014, Immobile scored his first Serie A hat-trick, in a 3–1 win against Livorno. Three days later, he scored a spectacular volley with his left foot against Roma, temporarily bringing the Granata level at the Stadio Olimpico. On 6 April, he scored the winning goal against Catania in a 2–1 victory.

On 22 March 2017 an Islamist-related terror attack happened in which a man stabbed a police officer after ploughing into pedestrians on Westminster Bridge. Five people were killed, including the attacker and the police officer.

On 22 March 2019, the extension options were agreed between the UK government and the European Council.

On March 22, 2019, it is announced that NBA Hall of Famer Shaquille O'Neal will join Papa John's board of directors.

On 22 March, it was reported that Russia had sent nine military planes with medical equipment to Italy.

The second son of Henry IV of England, Thomas of Lancaster, was killed in a battle.