當年今日,一月二十七日 一八八零年,愛迪生為他所發明的電燈申請專利。 一八八八年,國家地理學會 National Geographic Society 於華盛頓成立。 Share this:ShareFacebookLinkedInTwitterLike Loading... Author: kennethheung Solution Architect for Cloud, Security and Cloud Security. View all posts by kennethheung