Assignment: timeline

Your mission, should you choose to accept it, is to create a timeline similar to the familiar Jurassic-to-modern-day type timeline, showing when particular important events took place, e.g. dry cells, Maglites, laser, rechargeables, luxeon, p7.... with everything in between, and preferably with a sense of scale to emphasis how long the lumbering old giants were king and how quickly new technology surpassed even itself.

There are an amazing number of extremely knowledgeable folks here, many with enough computer savvy to make some sort of picture to show the ancestry of everything flashlight (or any other important light technology).