Extended date range from 4000 to 9999

Idea created by FrankvanderMost on Jan 16, 2019
    • Jens Teich
    • eric
    • FrankvanderMost
    • BeatriceBeaubien
    • Computor
    • Markus Schneider
    • beverly
    • CamelCase_data

    The idea: Extended date range from 4000 to 9999. Together with BC years  that means from 9999 BC to AD 9999 (either with or without a year zero.)


    Even though at present the oldest written sources date back to about 4000 BC, numbering systems predate those even further, as pointed out by mardikennedy in the thread Wish list for extended calendar support


    Many thanks to (in order of appearance in the thread to) CamelCase_data, Computor, beverly, TorstenBernhard, historychef, and mardikennedy for their help