A British swimming record fell after ten years. The next one lasted less than 24 hours. Karen Pickering swam the 100 metres freestyle in 56.59 to better June Croft's by one hundredth of a second. Later in the day, she swam 56.31, then broke that record the following month.
http://www.espn.co.uk/onthisday/sport/story/157.html#