Where “Earth Hour’s first global replication” started

WWF Australia, on Open web, Mar 31, 2007. It reached 2 platforms in 2.0 years.

LineageKey steps, 8 of 10. Lines follow time and platform
WWF AustraliaFirst postNate Tyler / Lights Out San FranciscoPressWWF Canada / Toronto Star / City of Toronto / Virgin MobileOpen webPlatform jumpMilestonePlatform jumpAfterlifePressPatient zero