Vulgus happened in 1984.

Vulgus was created on 1984-09-10.

Mob is short for mobile, which itself was a truncated form of mobile vulgus, a Latin phrase meaning 'fickle crowd'.

The most straightforward translation of the English word 'plebian' into Latin is Plebius. But there's another possibility. The word also may be rendered into Latin as Vulgus.

The first actual video game created by Capcom was the arcade title "Vulgus", a coin operated unit that was released in 1984. There were 2 games created previously, but were simply coin operated slot-style games.