** Baltimore riot of 1968 ; Baltimore Maryland

** 1968 New York City riot ; New York City, New York

** A labor dispute ignites a race riot in East St. Louis, Illinois, which leaves 250 dead.

** Jorge Eliécer Gaitán's assassination provokes a violent riot in Bogotá ( the Bogotazo ), and a further 10 years of violence in all of Colombia ( La Violencia ).

** Vietnamese riot in Haiphong and clash with French troops.

** Strangeways Prison riot: The longest prison riot in Britain's history begins at Strangeways Prison in Manchester, and continues for 3 weeks and 3 days, until April 25.

** A pro-democracy demonstration supporting Megawati Sukarnoputri in Indonesia is broken up by riot police.

** Thousands riot in Algiers, Algeria against the National Liberation Front government ; by October 10 the army has killed and tortured about 500 people in crushing the riots.

** About 850 convicts at Chatham Dockyard in England take over their prison in a riot.

** The Hough Riots break out in Cleveland, Ohio, the city's first race riot.

** Hard Hat riot: Unionized construction workers attack about 1, 000 students and others protesting the Kent State shootings near the intersection of Wall Street and Broad Street and at New York City Hall.

** Dan White receives a light sentence for killing San Francisco Mayor George Moscone and Supervisor Harvey Milk, gay men in the city riot.

** Riot control agent, less-lethal lachrymatory agents used for riot control

** Attica Prison riot of 1971

** WBC declared title vacant pending a rematch, asserting that referee Billy Conn was favoring Ortíz, giving him the benefit of a long count in the 2d and improperly stopping the match in the 5th round because of a cut to Ramos in the first fight the controversy caused a riot where the ring was torn down, guns were fired and Ortíz had to leave the ring with a bucket over his head.

** An anti-Asian riot attacks Vancouver's Chinatown

** The game ended with police riot squads on top of both dugouts in an obvious attempt to keep fans away from the players.

** A riot squad policeman is killed and two injured when a grenade is thrown into their vehicle

** Broadwater Farm riot, 1985 race riots

** Reveillon riot

** Mold-assisted reconstruction Made using laser scanning and 3D printing, a patient-specific silicone mold can be used as an aid during surgery.

** dry summer, wet winter: Most regions of the earth receive most of their rainfall during the summer months ; Mediterranean climate regions receive their rainfall during the winter months.

** if a player is penalized for unsportsmanlike conduct for actions that occurred during a play ending in a touchdown by that team, but before the goal line was crossed, the touchdown will be nullified.

** Hobby – regular activity or interest that is undertaken for pleasure, typically done during one's leisure time.

** Import substitution and nationalization, 1952 – 1966, during which the first program of industrialization in 1957 was established and led by the public sector in heavy industries such as iron and steel and chemical industries.

** Openness Euphoria, 1974 – 1982 during which policies were introduced to encourage Arab and foreign investment through a series of incentives and liberalizing trade and payment ; the economy expanded but this proved unsustainable and growth consequently scaled back.

** Nocturnal emission, ejaculation experienced during sleep

** 2 × AIM-9 + 2 × AIM-54 + 3 × AIM-7 ( Most common load during Cold War era )

** International Surfing Day ( June 21 during leap years )

** Timkat, or 20 during Leap Year ( Ethiopian Orthodox )

** No Thai music during the match

** Sknyatino – underwater since flooding during the 1930s.

** Malbork, Poland, site of the Ordensburg Marienburg, formerly Marienburg in Westpreußen and during World War II, Nazi Stalag XX-B ( prisoner-of-war camp ) for enlisted men

** Optical solitons, An equilibrium solution for either an optical pulse ( temporal soliton ) or Spatial mode ( spatial soliton ) that does not change during propagation due to a balance between diffraction and the Kerr effect ( e. g. Self-phase modulation for temporal and Self-focusing for spatial solitons ).

** Estrogen together with progesterone promotes and maintains the uterus lining in preparation for implantation of fertilized egg and maintenance of uterus function during gestation period.

** Manual gearbox changed during model year requiring shorter torque tube.

** ABS brakes became standard for all markets during model year production.

** Two airbags as standard in LHD models during model year production for most markets.

** Reformation in Switzerland, the Protestant Reformation in Switzerland, during the 1520s

** A rare conjunction of 7 celestial bodies ( Sun, Moon, planets Mercury – Saturn ) occurs during the New Moon.

** Anti-globalization protests in Prague ( some 15, 000 protesters ) turn violent during the IMF and World Bank summits.

** In Milan, Italy, during a far-left demonstration, a hooded person shoots at the police, killing a policeman, Antonio Custra.

** Anita Bryant is famously pied by four gay rights activists during a press conference in Des Moines, Iowa.

** Harold Wilson becomes British Prime Minister after leading the Labour Party to a narrow election win over the Tory government of Sir Alec Douglas-Home, which had been in power for 13 years and had four different leaders during that time.