Jan. 18, 1990: Then-Mayor Marion Barry is charged with cocaine possession and arrested in a sting at the Vista International Hotel.
Feb. 15, 1990: A federal grand jury indicts Barry on three felony counts of lying to a federal grand jury about his cocaine involvement in 1986 and 1988 and on five counts of cocaine possession from the Vista case and incidents in 1988. More drug charges come later.
Aug. 10, 1990: Barry is convicted of cocaine possession.
Oct. 26, 1990: A U.S. District judge sentences Barry to six months in prison and orders him to pay $5,000 for the cocaine possession conviction.
Oct. 26, 1991: Barry begins the sentence at the Federal Correctional Institution in Petersburg, Va., after unsuccessful efforts to appeal the judge's decision.
March 21, 2002: U.S. Park Police find traces of marijuana and $5 worth of crack cocaine in Barry's Jaguar while it's stopped in the no-parking zone in Buzzard Point in Southwest about 9 p.m. He is not charged.
Oct. 28, 2005: Barry pleads guilty to misdemeanor tax charges for failing to file local and federal income tax returns for six years, is ordered to undergo drug testing and is released on his own recognizance.
Sept. 10, 2006: Secret Service officers stop Barry, alleging that he ran a red light at 16th and H streets NW. He is charged with driving under the influence, operating a motor vehicle while impaired, driving an unregistered vehicle and misusing temporary tags.
November 2006: Barry tests positive for cocaine and marijuana during a court-ordered drug screening for his tax charge.
March 9, 2006: Barry is sentenced to three years of supervised probation for his tax troubles.
Dec. 16, 2006: U.S. Park Police stop Barry, alleging that he was driving too slowly at 25th Street and Alabama Avenue SE, and cite him for driving on a suspended license.
May 12, 2006: Barry is cited for failure to yield the right of way after he pulls a 1990 Mercedes out of a parking space and into the path of a vehicle in the 1000 block of First Street SE. He passes a blood-alcohol test after officers suspect him of being impaired.
June 13, 2007: Barry is acquitted of charges in his December 2006 arrest. Although arresting officers testify to his slurred speech, Barry's attorney says he simply has "thick-tongued" diction. Barry was driving a friend's Camaro, so he was unaware of registration and tag issues.
July 4, 2009: Barry is arrested and charged with misdemeanor stalking by U.S. Park Police. While in her car, on-again-off-again girlfriend Donna Watts-Brighthaupt flags down police in Anacostia Park and tells them that Barry, in another vehicle, is "bothering her."
Feb. 16: Special counsel Robert S. Bennett files a report with the D.C. Council, concluding that Barry personally benefited from a contract he obtained for his former girlfriend.
Feb. 23: Barry apologizes for exercising poor judgment in awarding the contract to Watts-Brighthaupt.
March 2: D.C. Council censures Barry, strips him of his committee chairmanship and refers allegations of public corruption to the U.S. attorney's office for possible criminal prosecution.
-- Nikita Stewart