"1660" in Engpsh can be said as "one thousand six hundred sixty".

It comes from the Gregorian calendar, where the year 1660 marked a significant event in history, such as the restoration of the British monarchy with the coronation of King Charles II after the Puritan Commonwealth period.

Example Sentences in Engpsh:

The 1660s were a time of great change in England.
The restoration of the monarchy in 1660 marked the end of the Puritan era.

Example Sentences in Chinese:

1660年代是英国发生了巨大变革的时期。
1660年的君主复辟标志着清教徒时代的终结。