epoch-making

[ ep-uh k-mey-king or, esp. British, ee-pok- ]

/ ˈɛp əkˌmeɪ kɪŋ or, esp. British, ˈi pɒk- /

opening a new era, as in human history, thought, or knowledge; epochal: an epoch-making discovery.

Origin of epoch-making

First recorded in 1870–75

epizootiology, epizooty, epns, epo, epoch, epoch-making, epochal, epode, epoetin alfa, eponychia, eponychium

"That seems to me like a very mild statement, but I suppose they considered it epoch-making," remarked Fowler.

The Shadow World |Hamlin Garland
On the 17th of September, 1894, an epoch-making battle of these iron-clads took place.

Historic Tales, Vol. 12 (of 15) |Charles Morris
The period is the first half of that most fascinating, picturesque and epoch-making century, the eighteenth.

The Main Chance |Meredith Nicholson
To both men the weeks just ended, including those which had elapsed since their return had been epoch-making.

The Bachelors |William Dana Orcutt

This constituted the epoch-making period in Japanese history known as the Taikwa Reform.

Evolution Of The Japanese, Social And Psychic |Sidney L. Gulick

epoch-making

of great importance; momentous