The modern concept of wellness did not, however, become popular until the 1970s.

Polygraphs appeared in the 17th century but did not became popular until 1800.

The "conventional" notation did not become so until the 1970s and 80s.

It did not become as popular in the US until the 1970s.

Although the current church on this site was built in 1903, it did not became a cathedral again until 1972.

These were what he had been headed toward becoming until a few short hours ago.

I did not learn how ill he had become until too late.

At his own time, the book had little or no impact and did not become popular until the middle of the 1940s.

After that, he became as a vice-president there until 1978.

He then became a professor there until 1920 and, for a time, was one of its directors.