A timeline is a way of displaying a list of events in chronological order, sometimes described as a project artifact . It is typically a graphic design showing a long bar labeled with dates alongside itself and (usually) events labeled on points where they would have happened.
Here is the collection of 7 cool web based timelines which can blew away your mind.
1. Simile Widgets
With this widget, you can make beautiful interactive timelines like the one below. Try dragging it horizontally or using your mouse-wheel. Click on each event for more details.
TikiToki is a web app that makes it dead easy for people to create interactive multimedia timelines in their browsers. Images, text and even videos (YouTube, Vimeo and AVIs) can be embedded in TikiToki timelines.
Simple and clean looking timeline with some very straight forward markup. This is a approach to creating a timeline out of CSS and HTML which results in a nice looking, simple timeline.