Where it comes from
The line in the source
"productTitle": "第4弾 拡張パック「ロケット団」", "releaseDate": "1997年11月21日（金）", "description": "カード／10枚" Explore / Figure
Record
JP expansion-pack release date, 21 November 1997 | 1997 | year to February 2098 (Mar 1997-Feb 1998) | print-year Apr 1997-Mar 1998
21 November 1997 21 November 1997 | 1997 | year to February 2098 (Mar 1997-Feb 1998) | print-year Apr 1997-Mar 1998
FiledTaken from a filing, a registry or the company’s own published page.