路易-布莱叶于1852年去世.Louis Braille died in 1852.1852年,拿破仑三世成为法兰西的皇帝.Napoleon III becomes Emperor of France.塔夫斯大学建立于1852年, 其教学与优秀与创新的研究是国际知名的.Founded in 1852, Tufts University has a global reputation for academic and research e...