From "The Round World"

Historical note.

Between 2000 and 2016 AC, with his brother Square, Round, of the Ginger line, ruled No.5 and, ultimately, the whole Gardens Precinct. 

It is remembered in the kingdom as a mostly peaceful period despite the presence of humans and two house dogs although the latter were quickly subjugated and the humans were allowed to settle to provide labour and as scribes and other officials.