We’re taking you back on this one… way back. Lego’s Robotics Invention System was released commercially in 1998 and was first utilized in educational settings thanks to a partnership with MIT’s Media Lab. So what did this “robotics” kit contain? Well, two motors, two touch sensors, and one light sensor. You used the included software to program the device, and it would perform completely on its own; acting according to the programmed instructions. Left, right, stop, start. If you had more than one unit, they could even “talk” to each other if they were within a certain distance. Not only could you program the brick (also known as the RCX) to perform what you wanted, but these were Legos — you could make them into whatever you wanted. Lego followed up the original Robotics Invention System with version 2.0 and, in 2006, with the NXT version. There is still pretty strong community support for these products even today. Did anyone else out there build two Lego robots and have them battling to the death?

BGR Throwback Thursday is a weekly series covering our (and your) favorite gadgets, games, and software of yesterday and yesteryear.

Jonathan Geller is the founder of Boy Genius Report, now known as BGR, and one of the biggest tech & mobile destinations in the world. BGR was acquired by leading digital media company PMC in April 2010 and Jonathan is President and Editor-in-chief of BGR Media, LLC. Jonathan was named to Forbes' coveted 30 under 30 list in 2016, and frequently appears as a commentator on news channels such as CNBC, Fox News, ABC News and Bloomberg.