3 seconds violation 1936年开始的：
The three-second rule was introduced in 1936 and was then expressed: no offensive player could remain in the free throw lane, with or without the ball, for more than three seconds.

合理冲撞区=The “no-charge area” 是在1997-98赛季开始的引进的。
1997-98
• The “no-charge area,” formerly a two-by-six foot box where an offensive foul is not called if contact is made with a secondary defensive player who has established a defensive position, will be expanded to the area consisting of a half circle with a four-foot radius measured from the middle of the goal.


回复：3楼
哦谢谢！
但是1936年NBA还没开始呢
你能不能找到NBA开始以后什么时候开始施行的3秒规则？
还是1946年一开始就有了？

回复：4楼
当然是有NBA就有三秒了，但是第一个引进这个规则的是NCAA，麦肯那个时代就已经有三秒规则了，而麦肯让三秒区扩大了。

回复：5楼
哦，了解了。

回复：6楼

我以前听说三秒区是为张柏伦特别设的？

这都在哪找的。。。。

石头的脑盘里。

张伯轮是扩大了三秒区