亚历山大·贝尔大事年表:On March 3, 1847, Alexander Graham Bell in Britain Edinburgh of Scotland was October 1858, bell went into the Edinburgh royal schools of higher August, 1863, at
托马斯·阿尔瓦·爱迪生(1847年2月11日—1931年10月18日),出生于美国俄亥俄州米兰镇,美国发明家、企业家。Thomas Alva Edison (February 11, 1847 - October 18, 1931), was born in Milan, Ohio, USA, an Americ