Starting in the 1880s, the German Kaiserliche Marine (Imperial Navy) began building a series of cruisers. The first designs—protected and unprotected—were ordered to replace aging sail and steam-powered frigates and corvettes that were of minimal combat value. After several iterations of each type, these cruisers were developed into armored and light cruisers, respectively, over the following decade. They were built to fill a variety of roles, including scouts for the main battle fleet and colonial cruisers for Germany's overseas empire. The armored cruisers in turn led to the first German battlecruiser, SMS Von der Tann.