Great ideas from great minds timeline

The next advancement in the history of communications came with the production of petroglyphs, carvings into a rock surface. It took about 20,000 years for homo sapiens to move from the first cave paintings to the first petroglyphs, which are dated to around 10,000BC
https://en.wikipedia.org/wiki/History_of_communication

The history of alphabetic writing goes back to the consonantal writing system used for Semitic languages in the Levant in the 2nd millennium BCE. Most or nearly all alphabetic scripts used throughout the world today ultimately go back to this Semitic proto-alphabet. Its first origins can be traced back to a Proto-Sinaitic script developed in Ancient Egypt to represent the language of Semitic-speaking workers in Egypt.
https://en.wikipedia.org/wiki/History_of_the_alphabet

With a well-developed writing system and messenger services, the Chinese would be the first to invent paper and papermaking when in 105 AD an official named Cai Lung submitted a proposal to the emperor in which he, according to a biographical account, suggested using “the bark of trees, remnants of hemp, rags of cloth, and fishing nets” instead of the heavier bamboo or costlier silk material.
https://www.thoughtco.com/early-history-of-communication-4067897

In 1448 Johann Gutenberg revolutionized the way books were made forever. He had a vision of a device that would utilized movable type using blocks with pre-printed text. Gutenberg made his first device by adapting a wine press to remove the water from paper after printing. His initial project with his new invention was a reprint of a Latin speech book. uneducated.https://www.creativedisplaysnow.com/articles/history-of-communication-from-cave-drawings-to-the-web/

By the 19th century, the world, it seems, was ready to move beyond the printed word.People wanted photographs, except they didn’t know it yet. That was until French inventor Joseph Nicephore Niepce captured the world’s first photographic image in 1822. The early process he pioneered, called heliography, used a combination of various substances and their reactions to sunlight to copy the image from an engraving.
https://www.thoughtco.com/early-history-of-communication-4067897

Alexander Graham Bell and Thomas Watson exhibit an electric telephone in Boston.A telephone, or phone, is a telecommunications device that permits two or more users to conduct a conversation when they are too far apart to be heard directly. A telephone converts sound, typically and most efficiently the human voice, into electronic signals that are transmitted via cables and other communication channels to another telephone which reproduces the sound to the receiving user.
https://goo.gl/M49Frh

Hedy Lamarr and George Antheil invent frequency hopping spread spectrum communication technique.
Frequency-hopping spread spectrum (FHSS) is a method of transmitting radio signals by rapidly switching a carrier among many frequency channels, using a pseudorandom sequence known to both transmitter and receiver. It is used as a multiple access method in the code division multiple access (CDMA) scheme frequency-hopping code division multiple access (FH-CDMA).
https://goo.gl/v8EXqi

Electronic mail (email or e-mail) is a method of exchanging messages ("mail") between people using electronic devices. Email operates across computer networks, which today is primarily the Internet. Some early email systems required the author and the recipient to both be online at the same time, in common with instant messaging. Today's email systems are based on a store-and-forward model. Email servers accept, forward, deliver, and store messages.
https://en.wikipedia.org/wiki/Email

Skype video calling software is launched.Skype is a telecommunications application software product that specializes in providing video chat and voice calls between computers, tablets, mobile devices via the Internet and to regular telephones. Skype additionally provides instant messaging services. Users may transmit both text and video messages, and may exchange digital documents such as images, text, and video. Skype allows video conference calls.
https://goo.gl/3aCkMY

iPhone is launched.iPhone is a line of smartphones designed and marketed by Apple Inc. The iPhone line of products use Apple's iOS mobile operating system software. The first-generation iPhone was released on June 29, 2007, and multiple new hardware iterations with new iOS releases have been released since. https://en.wikipedia.org/wiki/Timeline_of_communication_technology

Great ideas from great minds

Petroglyphs

Alphabet

Paper

Printing press

Photography

Telephone

Frequency-hopping spread spectrum

E-mail

Skype

iPhone