29
/
en
AIzaSyAYiBZKx7MnpbEhh9jyipgxe19OcubqV5w
March 32, 2023
Create
Public Timelines
Library
FAQ
For education
Cabinet
For educational institutions
For teachers
For students/pupils
Download
Export
Duplicate
Embed
Edit
155 views
0
0
Communication Technology
Created by
Caitlin Bull
⟶ Updated 14 Nov 2018 ⟶
List of edits
Comments
Events
Smoke signals
Carrier Pigeons
Telegram
Home telephone
Text message/ SMS
OTT
Social Bots
Emails
Internet becomes common in homes