The first telegraphs came in the form of optical telegraph including the use of smoke signals, beacons or reflected light, which have existed since ancient times. There is no real definite answer who invented it.
Alexander Graham Bell
GRAM BELL was the first man, who INVENTION FIRST TIME MOBILE.
Alexander Graham Bell
Philo Farnsworth, an Idaho farm boy invented the first non-mechanical Tele-vision in 1927, but 1929 is the date if its first for-real broadcast. (Of his wife)
john logie baird
The Gram stain was invented by Danish bacteriologist Hans Christian Gram in 1884. It is a technique used to differentiate bacteria into two categories based on the differences in their cell wall composition.
1934.
The first telegraphs came in the form of optical telegraph including the use of smoke signals, beacons or reflected light, which have existed since ancient times. There is no real definite answer who invented it.
Both Telescope and Telegraph have "Tele" as their first 4 letters. "Tele" is a prefix that means - at a distance.
Alexander Gram Bell
he invented the telephone
gram bell