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The first world record in the 400 m for women was recognized by the International Amateur Athletics Federation, now known as the World Athletics, in 1957. To June 21, 2009, the IAAF has ratified 27 world records in the event. Their 2009 record progression list, however, lists 26 records. [1]
She was a south of England sprint champion, and won the AAA's 200 metres in 1972 then the 400 metres in 1975. In 1977 she was U.K. 400 metres champion. In 1977, she married fellow athlete Bill Hartley. The marriage later ended in divorce. In 1978, Hartley won two Commonwealth gold medals in Edmonton, Canada, where she won the 400 metres, [3 ...
This measures the number of divorces per 1,000 women married to men, so that all unmarried persons are left out of the calculation. [1] For example, if that same city of 10,000 people has 3,000 married women, and 30 couples divorce in one year, then the refined divorce rate is 10 divorces per 1,000 married women.
The women's vault record has been advanced 9 times indoors by three different women, each ratified as a world record. The last record to be set indoors was in 2004. Sergey Bubka 's 1993 pole vault world indoor record of 6.15 m was not considered to be a world record, because it was set before the new rule came into effect.
McLaughlin-Levrone won her second consecutive Olympic gold medal in the 400-meter hurdles, posting another world record time at 50.37. It's the sixth time she's lowered her own world record.
Koch's 400-metre world record of 47.60 seconds still stands in 2024. Kratochvílová's world record on an indoor track—49.59—stood until 19 February 2023 when the 400-meter indoor world record was broken by Femke Bol from the Netherlands with a time of 49.26. [6] [7] [8] Koch and Kratochvílová are the only women who have broken the 48 ...
Both marriage and divorce rates declined in the U.S. from 2011 to 2021, according to the most recent statistics from the U.S. Census Bureau. The U.S. divorce rate recently hit a 50-year low, the ...
The women's 400 metres hurdles is an outdoor track event over a distance of 400 metres with ten hurdles at the height of 76.2 cm (30 inches). [1] The world records of this women's event have been recognised by World Athletics (called the International Association of Athletics Federations until 2019) since 1974. [2] Every world record is fully ...