Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. This is the main article of a series that covers the History of Seattle, Washington, a city in the Pacific Northwest region of the United States of America. Seattle has a history of boom and bust, or at least boom and quiescence. Seattle has on several occasions been sent into severe decline, but has typically used those periods to successfully rebuild infrastructure. There have been at least five such cycles: The lumber-industry boom, followed by the construction of an Olmsted-designed park system.