Revolucion Industrial y Primera Guerra Mundial

http://www.slideshare.net/Lambdaa/ppt-revolucin-industrial-xix-y-la-1-guerra-mundial

Revolucion FRancesa

http://www.bing.com/videos/search?q=you+tube+-+revolucion+francesa&FORM=VIRE7#view=detail&mid=3A0236DEB5A2079971C13A0236DEB5A2079971C1