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On June 27, 1967, Barclays Bank installed in Enfield, London, the world's first cash machine (ATM) — an invention by Scotsman John Shepherd-Barron, who according to legend was inspired by chocolate vending machines. The first customer was actor Reg Varney. ATMs revolutionised banking services: there are now more than 3 million worldwide.

On June 27, 1880, Helen Keller was born in Tuscumbia, Alabama — who at 19 months became deaf and blind following an illness. Thanks to her teacher Anne Sullivan, she learned to communicate and became the first deafblind person to earn a university degree (1904). Helen Keller was a political activist, writer and universal symbol of overcoming disability. Her story was immortalised in the play "The Miracle Worker".

On June 27, 1950, US President Harry Truman authorised US military intervention in the Korean War, two days after North Korea invaded the South. The decision, taken without a formal congressional declaration of war and backed by a UN resolution, was the first major conflict of the Cold War. The US led a coalition of 16 countries fighting under the UN flag.