Alexander's phalanx was 16 ranks deep and 256 files wide. This gives a depth-to-front ratio of 1 to 16. This contained (at full strength) 4,096 troops
Where do you get that from? Some think his taxis were 1500 men and others believe they were 2000 men.

http://www.ne.jp/asahi/luke/ueda-sar...icusNotes.html argues for 2000 men taxis and seems very reasonable.


CBR