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Organizations, places or other things founded or established in the decade 1550s.
This category has the following 18 subcategories, out of 18 total.
- Buildings and structures completed in the 1550s (13 C, 1 P)
- Organizations established in the 1550s (7 C, 3 P)
- Populated places established in the 1550s (10 C, 3 P)
- States and territories established in the 1550s (7 C, 5 P)