It uses a variety of published sources, so it will quote what those say, so no. It's likely to be at the battle of Queens in Fire Season 1626 (Glorantha Sourcebook), Jeff clears it up in Round 4 & 6 here:
No. This is an online only source that collates the available published material. It's been there since 1999, we're just replacing the sources that aren't available, updating those that are available (eg. KoS 2nd ed), and adding newer ones. It's been broken into separate pages to make reading easier.
My thanks to @Oracle for his excellent work on this.