tók mig reyndar 7 skref, en er örugglega hćgt í 2-3 ef mađur reyndir virkilega ađ lágmarka:
http://en.wikipedia.org/wiki/Arquebus
http://en.wikipedia.org/wiki/15th_century
http://en.wikipedia.org/wiki/King_Sejong_the_Great
http://en.wikipedia.org/wiki/History_of_Korea
http://en.wikipedia.org/wiki/Chinese
http://en.wikipedia.org/wiki/Chinese_culture
http://en.wikipedia.org/wiki/Chinese_history
http://en.wikipedia.org/wiki/Great_Wall_of_China