Where it comes from
FY3/10 Financial Results Explanatory Material (launch-date tables by region) Nintendo Co., Ltd. · 7 May 2010 Open the original ↗
The line in the source
The United States (Software) ... Pokémon HeartGold Version 2010/3/14 / Pokémon SoulSilver Version 2010/3/14; Europe ... Pokémon HeartGold Version 2010/3/26 / Pokémon SoulSilver Version 2010/3/26