Which statement correctly uses a description of time?

Question

The invention of the automobile began a new millennium.
The expansion of railroads marked the start of a new era.
The time from 1980 to 1989 was a century of economic growth.
The years 1900 to 1999 were a decade filled with many political changes.

Answer 1

The statement that correctly uses a description of time is:

The expansion of railroads marked the start of a new era.

This statement accurately reflects a significant historical context related to the development of transportation and its impact on society. The other statements contain inaccuracies related to the definitions of time periods (century vs. decade).