Late 1920s/Early 1930s: Infamous razor gangs terrorised much of Glasgow and staged bloody battles with each other.
Some gang members were responsible for the horrendous facial scarring, which became known as the "Glasgow smile".
Billy Fullerton's gang was among the most feared, especially in Bridgeton and the Gorbals.
1950s/1960s: There was an explosion in gangs with various Tongs or Tois, the Fleets and the Bundys all founded during this time.
1970s: The Thompson Gang started its three-decade rule of Glasgow's streets.
'Godfather' Arthur Thompson, began his criminal empire as a money lender.
Those who failed to pay their debts were subjected to horrific, violent, consequences. The Thompson Gang became involved in protection rackets and, like many others, forays into the drug trade soon followed.
1980s: Tam McGraw, who had a long-running feud with rival Paul Ferris, builds up a £30million empire.
He was dubbed The Licensee over claims he had a free rein to commit crime and his business interests ranged from taxi firms, ice cream vans and security companies to extortion and drugs.
The Licensee was a central figure in Glasgow's notorious Ice Cream Wars and ran his operation from the Caravel pub in Barlanark.
Fat Boy Thompson was jailed for 11 years after a huge heroin bust and while inside drew up a "hit-list" of people who he believed had crossed him.
Ferris fell out with Arthur Thompson and went off on his own, teaming up with Bobby Glover and Joe Hanlon.
1991: Thompson's son, Fatboy was shot dead outside their home and rival gangland figure, Ferris was arrested for the shooting.
On the day of Fatboy's funeral the bodies two of Ferris' friends, Glover and Hanlon were found dumped on the route of the funeral procession.
1993: Arthur Thompson died of a heart attack.
Late 1990s: One of Scotland's longest-running gang feuds began when the Lyons sold a stash of Daniel cocaine.
It sparked tit-for-tat shootings, including the murders of Michael Lyons, 21, and Daniel enforcer Kevin "Gerbil" Carroll.
2000: Robert 'Birdman' O'Hara set up a network of dealers in north Glasgow and was understood to have made profits of £500,000 a year.
2004: The two men convicted of the notorious 'ice cream war' killings walked free from the court after their third bid to clear their names succeeded.
Meanwhile, Birdman had Paul McDowall, 25, knifed and beaten to death in Possilpark. McDowall was an associate of a rival drug dealer.
O'Hara was arrested after a luxury holiday in Mexico.
2005: O'Hara, then 27, was convicted of murder in May.
2006: Two gunmen killed a member of the Lyons family, Michael, and wounded another in an attack at an MOT garage in broad daylight.
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