Medieval 400 to 1500

http://www.pbs.org/wgbh/nova/ancient/secrets-viking-sword.html

http://www.pbs.org/wgbh/nova/ancient/viking-ships.html

another blogger:
Rome http://stantonsocialstudies.blogspot.com/2015/05/homework-for-tuesday-may-19th.html
Greece http://stantonsocialstudies.blogspot.com/2015/03/homework-for-wednesday-march-18th.html
Ottoman Empire http://worldhistoryeducatorsblog.blogspot.com/2015/07/expansion-demise-of-ottoman-empire-map.html