Hidden, it began to rebuild, infiltrating Earth society over the course of centuries and using human genetic material to create a new Dalek race.

They found Earth society paranoid and isolated, with extremely xenophobic attitudes toward Spacers.

Earth society is based on the nuclear shelters of the 20th century, with most people living underground.

Others remained to form present day Earth societies, which interact covertly with other extraterrestrial races and civilizations, many of them human.

"Beatniks were a substrata of Earth society from the mid-twentieth century," the human replied.

It's the first chance I've had to spend some time with a woman who knows Earth society.

Its structures represented architectures from a mélange of Earth societies spanning human history.

This was contradicted by later episodes that depict Earth society as having enforced laws regarding mutants.

Like your mother and me, he couldn't tolerate what passed for Earth society, and re-upped to get away from it.

A modern athlete just after a competition would surely be a shocking sight to a citizen of any Earth society.