25 years ago: Emergency services rushed to Bradford city centre when leaking gas caught fire, sending flames 15ft into the air.

50 years ago: Four brothers of a Bradford wool merchant family were bidding for control of the tea and coffee combine, T Collinson and Sons Ltd, Halifax. The sum of £450,000 was involved in the bid.

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1926: John Logie Baird gave a public demonstration of television to members of the Royal Institution in London.

1973: America signed a ceasefire to end its military action in Vietnam.