Texas History portalOrganizations, places or other things founded or established in the decade 250s. 200s210s220s230s240s250s260s270s280s290s300s 3rd BC2nd BC1st BC1st2nd3rd4th5th6th7th8th See also: Category:3rd-century disestablishments Subcategories This category has only the following subcategory. 0–9 258 establishments (1 P)