Ba'alei Teshuvah

 https://www.encyclopedia.com/religion/encyclopedias-almanacs-transcripts-and-maps/baalei-teshuvah

In the second half of the 20^th century, the words ba'alei teshuvah took on new significance. Beginning in the 1960s in the U.S., the rise of the counterculture in general American society together with the search for new meaning and spirituality led an increasing number of college-age Jews to explore Jewish observance, many for the first time. For most of these young Jews, the exploration led them to Orthodoxy, of one form or another.