Место пробелов вставить (который? кто? что? когда? где? ) Which ,who ,that ,when,where . 1. 1843 was the year in ... Samuel Morse proposed a way to give every letter and number a special code (point ,line and space). 2. It was Morse's Symbol code ... we can still find used today . 3. Alexander Popov from Russia ... invention of the radio came before Marconi's, did non patent it.