epochal

The silence lengthened until it became acute, epochal, climactic.

The 1914 catalogue was epochal in the life of this big farmer.

In 1868, Westinghouse made his epochal invention, the railway air-brake.

Historians recognize two epochal events in the life of the nation.

But in the future they will be regarded as epochal in the science of mind.

Then one epochal day, emulating Tess's example, she essayed to ride astride.

His studies with regard to light are almost as epochal as those with regard to magnetism.

And Knowlton outlined the epochal occurrences of the world conflict.

We are still too near the events that made it to us an epochal book.

Coronado had made one of the epochal explorations of all history.