Forum:Sources for set release dates?

Hey all, I was wondering if everyone could help me with sleuthing out release dates for various sets (particularly older/more obscure ones). If you're aware of a source which states a release date for a given set (regardless of region), please post it, unless the set's release date is already well-documented. Archived versions of sources which are no longer online (through archive.org, for instance) are also welcome. Each region version of each set should get its own section. Thanks! 「 ダイノ ガイ 千？！ 」? · ☎ Dinoguy1000 06:47, March 28, 2011 (UTC)

Starter Deck: Yugi (SDY; TCG-EN)
I've looked several times, but the closest I can find for an actual release date is the earliest comment on the set's Amazon.com page, which was posted on May 24, 2002; however, I seem to recall at least once seeing a release date that puts it and SDK earlier than LOB (which I've also never found a source for). 「 ダイノ ガイ 千？！ 」? · ☎ Dinoguy1000 06:47, March 28, 2011 (UTC)

Starter Deck: Kaiba (SDK; TCG-EN)
Similar to SDY above, I've never found a definitive source for a release date for this set. ToyWiz lists Kojikocy (SDK-009) as having been released in March 2002. 「 ダイノ ガイ 千？！ 」? · ☎ Dinoguy1000 06:47, March 28, 2011 (UTC)