Once upon a time, in the year 2007, this guyname Phil co-founded DDO with his wife, Crystal. Except, it wasn't called DDO then, it was know as Debate.com or something
The first debate!!
Phil and Crystal created the website's first debate, which interestingly enough is still in the voting period, 7 years on (Crystal is winning).
Creation of Forums
In 2008, the first forum was created. It has been periodically necoroposted on ever since.
Some other stuff
In 2010 Phil sold Debate.com to these people for a shit load of money. The site was renamed it Debate.Org.
Polls and Opinions were created in the year .... to much opposition from the elite forum douches.
This is the oldest poll I could find: http://www.debate.org/polls/which-is-better-tesla-roadster-or-porsche-911
And here is the oldest contribution to Opinions...it has no votes, lol: