ITN Source, a provider of archival video footage, has published an interesting timeline of the development of technology since 1900. The timeline is arranged by decade from 1900 through 2010. Each stop on the timeline features a short video about the technological developments of the decade. None of the content is terribly in-depth, but it could serve as a good starting point for discussions and lessons about the technological advances of the 20th Century.
One complaint that I have about ITN Source's timeline of technology is that you cannot rewind or fast-forward to a decade. You have to play all of the videos in sequence in order to navigate the timeline.
Applications for Education
Students can create a similar type of timeline by using Timeline JS. Timeline JS allows students to develop timelines that contain videos, images, and text. Click here to watch a demonstration of how to create a multimedia timeline through Timeline JS.