What year was roblox created in

ROBLOX was first created in 2004 but it was like a basic set up site.
In early 2005 ROBLOX was making lots of progress and coming to an opening.
In late 2005 ROBLOX came to an opening, very boring and laggy.
In 2006 ROBLOX was getting popular and people started to join.
In 2007 ROBLOX had a big sign up spree.
In 2008 ROBLOX had a continues spree of sign ups.
In 2009 ROBLOX was awesome
In 2010 ROBLOX had lots of people signing up and very fast preformance.
In 2011 ROBLOX had lots of people in games, lots of things to do, loads of stuff in the catalog and MILLIONS of users.