epoch

In its press release, the Academy said the dictionary is a “mirror of an epoch running from the 1950s up to today,” and boasts 21,000 new entries compared to the 1935 version.

That was a very important epoch in human history.

"In these early epochs, the amount of gas around galaxies is so large that continuous star formation is the norm. But in this galaxy this process is not happening."

Now the site "stands on the threshold of a new epoch", said Tom Sawyer, chief executive of Milford Haven Port Authority.

This all suggests that cumulative culture arose near the beginning of the Middle Pleistocene epoch, possibly predating the divergence of Neanderthals and modern humans.