History for the day: 6 September 1915: First tank produced

History.com has this for 6 September:

http://www.history.com/this-day-in-history/first-tank-produced?cmpid=email-hist-tdih-2016-0906-09062016&om_rid=847fd754baf09b7865bbc1fb225e1b1b26c8bf50caf45bc6e6b7fec8944a2985&om_mid=87307128&kx_EmailCampaignID=6998&kx_EmailCampaignName=email-hist-tdih-2016-0906-09062016&kx_EmailRecipientID=847fd754baf09b7865bbc1fb225e1b1b26c8bf50caf45bc6e6b7fec8944a2985

Rico says war has never been the same.