LD is short for Lincoln-Douglas, and you don’t ever really need to know who they are. But if you’re curious, the event is named after Abraham Lincoln and Stephen Douglas, and their famous debates about the expansion of slavery. It’s nowhere near that old, however. The competitive debate event was started in the 1980s.
This page will give you a high-level overview about LD, starting from the most general features of LD as a competitive speech and debate event, moving on to what it means to be a debate event, and then finally telling you some of the specifics about LD particularly.
Don’t worry: this is just to get you familiar with the topic, we’ll teach you how to do it in a bit.