http://depthome.brooklyn.cuny.edu/classics/dunkle/athnlife/waterclk.htm Water Clock

http://historylink101.net/greece1/pic_greek-coast-1.htm

Stoa and Agora

http://www.greekislands.com/athens/a_agora.htm

http://www.umich.edu Phalank

http://joseph_berrigan.tripod.com/ancientbabylon/id27.html

www.angliacampus.com

www.agnr.umd.edu/users/hort/sullivan/

http://www.users.globalnet.co.uk/~loxias/viewherms.htm

http://webpages.charter.net/brueggeman/enemies-of-rome.html

Phalanx diagram