epoch-making

plural of era name

The regnal year, reign period, or regnal title used when traditionally numbering years in an emperor's reign and naming certain Chinese rulers.

(baseball) The period after about 1919, following the dead-ball era.

(baseball) The period between around 1900 and 1919, characterized by low scoring games with few home runs.

A tool made from pliable material resembling putty or chewing gum used to absorb graphite or charcoal.

Synonym of modern period or modern history (the period following postclassical history, in Europe known as the "Middle Ages", spanning from about 1500 to the present).

(historical) A period of widespread social activism and political reform across the United States that spanned the 1890s to the 1920s.

(historical) The time period between 1611 and 1721 when the Swedish Empire thrived in Europe.

Synonym of Common Era