Unit 1: Social Networks (Première Générale)

 The evolution of the means of communication

-Smoke Signals: One of the oldest forms of long distance communication. Well-known from the Native Americans, but also in Europe, in Greece in 150 BC (Before Christ).

-Rock Carving: Prehistorical times with the cave men. In Europe in the ancient times.

-Ink and Paper: Around 1000, the invention of ink paralleled the invention of paper with the Chinese. The Egyptians, Romans, Greeks and Hebrews used to use papyrus and parchment paper. They used to use quill pen, feathers from geese, turkeys, owl, eagles, hawks, swans…
-Pigeon Post: Homing pigeons were used as tools to communicate from one place to another without limited distance. The pigeons were transported to a destination in cages, where they would be attached with messages. Then, naturally, the pigeons would go back to their home. They have been used since the 12^th century.  

Printer: 1434 by Joannes Gutenberg, with replaceable wooden or metal letters.

-Typewriter or writing machine: Invented in the 1860s. at first, they were for professional use for writers, journalists, secretaries… Then, people started to have one in their house for personal use.

 (We will keep on the study of the document next time. Be ready!)

Homework: Learn the lesson.