With the printing press - people had access to more books., The train was - very important for the Industrial Revolution., The Wright brothers - invented the plane., Guillermo Marconi - invented one of the first radios., The TV wasn't - invented by just one person., The first successful helicopter was - invented in the 1920s., Computers and robots were - invented in the 19th and 20th centuries.,

Important inventions

由
打印
嵌入

排行榜

视觉风格

选项

切换模板

恢复自动保存：？