Recent underwater discoveries have revealed significant shipwrecks from the 19th century, showcasing the rich maritime history of the Great Lakes and the Baltic Sea. In Lake Michigan, maritime historians located the Margaret A. Muir, a 130-foot schooner that sank in 1893, preserving its deck gear and architectural details due to the lake's cold waters. Meanwhile, Polish divers uncovered a Baltic Sea shipwreck containing over 100 bottles of champagne, mineral water, and porcelain artifacts, believed to date back to the mid-19th century. The German brand Selters, known for its mineral water, was of high value during that time and often transported under police escort. Both discoveries not only add to the historical narrative of maritime trade but also emphasize the importance of preserving such underwater archaeological sites. Researchers are now working to nominate the Muir for the National Register of Historic Places and further analyze the Baltic wreck's artifacts.