Did a drunken brawl in the House of Commons set off a chain of events that led the UK to vote for Brexit? Show more

Did a mid-ranking businessman’s purchase of Bovril in 1971 set off a chain of events that meant the UK never adopted the euro as its currency? Show more

Did the failure of a boat engine off the coast of Cuba in 1999 set off a chain of events that led to the current climate change crisis? Show more

Did the Black Panthers’ discovery of an obscure shooting law in 1966 set off a chain of events that accidentally helped bring about the current gun crisis in the USA? Show more

Did an algorithm change introduced by Facebook in 2006 lead to worldwide anxiety and anger? Show more

Jim Waterson investigates how the politics of the Vietnam era changed agriculture in the US and pushed the country towards a national diet of highly processed foods. Show more

Jim Waterson looks at how the loss of a handwritten note from Boris Johnson led to Theresa May becoming prime minister and changed the course of British history. Show more

Jim Waterson investigates how a doomed theme park based on a 1990s TV character turned local politics in Morecambe upside down, with long-lasting effects. Show more

Jim Waterson investigates whether a doomed investment in a West End musical about Leonardo Da Vinci left the Pacific island nation of Nauru housing Australia’s migrants. Show more

Jim Waterson investigates whether one Iraqi man’s decision to move his family to Norway led to the Scandinavian country becoming one of the richest nations in the world. Show more