25 years ago: Thousands of pounds of stock was destroyed at Bradford shops after a water pipe burst on the third floor of a building in Darley Street.

50 years ago: Bradford man Barry Turton, 24, was one of 70 soldiers and airmen to take part in a 100-mile walking race from Derna to Tobruk in Libya.

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1911: More than 6,000 letters and postcards were flown five miles from Allahabad to Naini Junction in India by Henri Picquet – the first official airmail.

1930: American astronomer Clyde Tombaugh discovered the planet Pluto from a series of pictures taken the previous month at Lowell Observatory.