I am reworking the media timeline that I use for teaching and this is what I have so far. What am I missing? Are there any glaring errors or omissions? The dates are notoriously hard to pin down on some things and I have used the earliest invention rather than the date they maybe became more popular. The social media timeline in the bottom needs to be extended to include more years and maybe be redesigned to better fit into the style of the others.
The original ppt slides are available here if you want to reuse them.