Passed down from university scholars and government workers in the late 1960′s to the makers of cat videos in the 21st century, the internet has changed a lot in the last few decades. Or has it?

This infographic covers the highlights (the first emoticon) as well as the lowlights (the first spam email) of internet history.

Created by AVG, the timeline pays special attention to the worms and viruses that inevitably followed each technological advancement. (One step forward, two wiggles back.)

Take a look and let us know what they missed.