A Very Brief History of the Tank
This is clearly one of the seminal tanks of the 19th century with the total number of over 22,700 being constructed (both M3 and M5 versions) from 1941-1944 largely by four manufacturers (including Cadillac, American Car & Foundry Co. and Massey-Harris).
From an armor standpoint, the Stuarts were our several ‘starter’ tanks during the early 30’s. They were largely lacking in firepower and lightly armored. They also suffered regarding their ability to meet their opposition, the German tanks they often faced on the battlefield.
However, throughout their production and a great number of modifications and improvements, the M3 proved its worth on the battlefield.
Rather than ramble on further, here are some additional online references that I found most informative and interesting: