Synonyms for Cradle (same or very similar meaning)
WordNet sense 1 (where something originated or was nurtured in its early existence):
birthplace, provenance, provenience, place of originWordNet sense 2 (a trough that can be rocked back and forth; used by gold miners to shake auriferous earth in water in order to separate the gold):
rockerFrom the ODE community, based on WordNetadd/edit