Home›Medieval›Era (Birth Year)›By Century›12th centuryBrowse By12th centuryFacts12th centurySourcesComments (0)Reader Challenges (0)FactsComparisonEra Of EmergenceWell-attested500 112th centuryFilter Results1 entryBranchAllAlgebra (1)Mathematical Biology (1)Number Theory (1)Nationality / CultureAllRepublic of Pisa (1)GenderAllMale (1)Show ResultsLeonardo of Pisa12th centurySources1. Middle Ages (Wikipedia)tier 2Wikimedia FoundationTerminology and periodisation sectionQuote, Terminology and periodisation sectionThe most commonly given starting point for the Middle Ages is around 500, with the date of 476 first used by Bruni.View the SourceComments (0)No comments yet. Be the first to share a thought.Sign in to join the discussion.Reader Challenges (0)No disputes yet. Spotted an error or a better source? Open the first one.Sign in to dispute this or suggest a correction.