Identifying historical timeframes

#1

From @BlemonBL on Wed Aug 08 2018 14:01:41 GMT+0000 (UTC)

“As an historian, I need to identify which definition of a particular historical timeframe I have adopted (e.g. the Elizabethan era) in my work, particularly where the dates and definitions of those eras are contested.”

Copied from original issue: https://github.com/datacite/freya/issues/46