The document provides a timeline of key events in the history and development of Berlin from 1443 to 1989. It traces the city's growth from a population of around 8,000 in the mid-15th century to over 400,000 by the early 19th century. Major events included the Protestant Reformation in the 16th century, devastating losses during the Thirty Years' War, and the division of Berlin by the Berlin Wall in 1961 until its fall in 1989. Maps show the expansion and development of the city center over time.