What is a characteristic that is common to all time lines? Events are organized by era.
Events are identified by images.
Events are placed in chronological order.
Events are explained by detailed summaries.

Events are placed in chronological order.

Explanation:

A "timeline" shows how events happened from the beginning until the recent time. It should then follow a "chronological order" or events should be placed in the order of time. Timelines are often used in biographies, an account of person's life that was written by another person. It is also being used in History books in order to tell the course of events, for example from the time the USA was under the British rule up to the time it gained independence.

hitler was elected as a strong leader by germans who felt angry following the treaty of versailles.