2 sentences

1. 或许六十年代就是这样。

   huò​xǔ liù​shí​nián​dài jiù shì zhè​yàng.

   Maybe it was the '60s.

   Source: OpenSubtitles

2. 民权运动在二十世纪六十年代非常活跃。

   mín​quán yùn​dòng zài èr​shí shì​jì liù​shí​nián​dài fēi​cháng huó​yuè.

   The civil rights movement was very active in the 1960s.

   Source: Dong Chinese Dictionary