Can someone correct my text grammatically? English?

Gi
1

The cartoon shows the development of human communication. He looks like a caveman who tries to write something on the stone with a hammer and nail by hitting it. So they contain messages on stone and cave walls.

The second one already uses movable machines to reproduce the letters on a child of paper. He turns a stick and the machine prints the individual letters on the paper.

The man in the middle wears a suit and holds a book in his hand. This shows, that mass printing was invented. Here are printed books that describe the circumstances and their contents.

But people invented even more progressive ways to communicate: In modern times we use electronic media. This we can see looking at the next person. He bents over an electronic thing and is typing something on his laptop, and probably sends an e-mail to someone. The electronic mail was made faster and easier to communicate.

Now we're in our century, but we're living in a new age and we're talking about a mobile device. Little device and 140 letters or less.

The last three cartoons use her legs. They move while the first two use their hands.

ac

You posted it today today. Here I see no change. And I gave you some tips.