New world records in swimming events

Event:
Women's 4x200m freestyle relay
Previous WR：
7:50.09
New WR：
7:44.31
Record breaker: Australia

Event:
Women's 400m individual medley
Previous WR：
4:31.12
New WR：
4:29.45
Record breaker: Stephanie Rice

Event:
Women's 800m freestyle 
Previous WR：
8:16.22
New WR：
8:14.10
Record breaker: Rebecca Adlington

Event:
Women's 100m backstroke
Previous WR：
58.97 secs
New WR：
58.77 secs
Record breaker: Kirsty Coventry

Event:
Women's 4x100m medley relay 
Previous WR：
3:55.74
New WR：
3:52.69
Record breaker: Australia

Event:
Women's 200m breaststroke 
Previous WR：
2:20.54
New WR：
2:20.22
Record breaker: Rebecca Soni

Event:
Women's 200m backstroke
Previous WR：
2:06.09
New WR：
2:05.24Record breaker: Kirsty Coventry　

Event:
Women's 200 freestyle Previous WR：
1:55.45.
New WR：
1:54.82.
Record breaker: Federica Pellegrini

Event:
Men's 100m breaststroke
Previous WR：
59.13 secs
New WR：
58.91 secs
Record breaker: Kosuke Kitajima

Event:
Men's 4x200m freestyle relay 
Previous WR：
7:03.24
New WR：
6:58.56
Record breaker: United States

Event:
Men's 400m medley
Previous WR：
4:5.25
New WR：
4:34.84 
Record breaker: Michael Phelps

Event:
Men's 100m freestyle
Previous WR：
47.50 secs
New WR：
47.05 secs
Record breaker: Eamon Sullivan  

Event:
Men's 100m backstroke 
Previous WR：
52.89
New WR：
52.54
Record breaker: Aaron Peirsol

Event:
Men's 4X100 freestyle relay
Previous WR：
3:12.46
New WR：
3:08.24
Record breaker: United States

Event:
Men's 200m freestyle
Previous WR：
1:42.96
New WR：
1:43.86
Record breaker: Michael Phelps

Event:
Men's 4x100 medley
Previous WR：
3:30.48
New WR：
3:29.34
Record breaker: United States

New world records in other events

Event：
Women 69kg class weightlifting
New WR：
286kg
Record breaker：
China's Liu Chunhong

Event：
Women 3000m steeplechase
New WR：
8 minutes 58.81 seconds
Record breaker：
Russia's Gulnara Samitova-Galkina

Event：
Men's team pursuit
New WR：
3 minutes 53.314 seconds
Record breaker：
Britain

Event：
Women's pole vault 
New WR：
5.05 meters
Record breaker：
Russia's Isinbaeva
　

Event：
Men's 105kg class weightlifting
New WR：
436kg 
Record breaker：
Belarus's Andrei Aramnau

Event：
4x100m relay
New WR：
37.10 seconds
Previous WR:
37.40 seconds
Record breaker：
Jamaica

Event：
men's 200m
New WR：
19.30 seconds
Previous WR:
19.32 seconds
Record breaker：
Jamaican Usain Bolt