i have got different answer towards one question

[sallyhoudongmei]

1900s refers to the decade from 1900 to 1909 or 1900-2000
and what about 1910s etc. how to read them?
who can help me, thank you?

[Anglika]

The 1900s is the decade from 1900 to the end of 1909; the 1910s is the decade from 1910 to the end of 1919; the 1920s is the decade from 1920 to the end of 1920 - and so on.

The whole century is the 20th century.

[RonBee]

Nineteen-hundreds? Nineteen-tens? Two-thousands? Twenty-tens?

~R