1
vote
1answer
202 views

Did Basic D&D invent and popularise the abbreviation XP for experience points? [closed]

Basic Dungeons and Dragons page B22: Experience points (abbreviated XP, as ep stands for electrum pieces) are given for non-magical treasure and for defeating monsters. Is this why in most games ...
27
votes
5answers
6k views

What are the differences between Holmes, Moldvay, and Mentzer D&D?

What are the differences between Holmes, Moldvay, and Mentzer D&D? Also, which one came first?