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% replaces any number of letters (la% - lake, lamp)_ replaces one letter (ca_ - car, cat)

Crossword clues for Abbr. found before a founding date:

ESTD: Abbr. found before a founding date
ESTAB: Founding-date abbr.
ESTAB: Abbr. with founding date
ESTD: Abbr. before a founding date
ESTD: Abbr. preceding a founding date