So if the Ultima series was the first to introduce JRPG elements such as an overworld map with dungeons and towns, random-encounters, a party of characters to control, turn-based fighting, menu-based commands, etc.; then why do we call them JRPGs? Shouldn't we be calling them BRPGs or ERPG for British or English RPGs?
It's an interesting question, though. I guess we call most of those games nowadays JRPGs because they originate from Japan. If it's a Western-produced RPG (wha? where? who?), we do tend to say it's JRPG-style, etc., I think, because folks are already familiar with what a lot of Japanese RPGs are like. It seems like Japan really embraced the turn-based RPG style while other countries embraced making action-RPGs.
I didn't grow up playing Ultima and the beginning wave of RPGs. I started off playing JRPGs on the Playstation and then eventually found out about tabletop RPGs and realized that the roots go deeper than videogames, ha.