Archaeologists have uncovered a shipwreck that is approximately 400 years old in the Baltic Sea, off the northeastern coast of Germany, during construction work for a gas pipeline in the Bay of Greifswald. The wreck was found at a depth of 7.5 meters, and nearly sixty objects were recovered from the site. Researchers believe the ship sank while it was moored, likely due to a fire on board, as evidenced by burn marks on the wooden structure. The ship's hull was built using planks stacked like roof tiles, fastened with iron nails and waterproofed with tar. The presence of two forged iron anchors, a wooden buoy, and very long ropes suggests the vessel was anchored in the bay when it sank. A technique called **dendrochronology**—which uses tree ring patterns to determine the age of wood—revealed that the planks used to build the ship came from trees felled between 1615 and 1639. Among the recovered items were forged iron anchors, wooden planks, tools, shoe soles, and a bilge pump pipe made from a single oak trunk nearly 3.7 meters long. A yellow clay brick embedded in wood with several holes was also found. Researchers believe this may have been an improvised sharpening tool for drills or scissors, possibly repurposed from a damaged tool with a similar function and mounted in a newly made wooden casing. To allow the research team to recover the artifacts, the planned route of the gas pipeline was altered. Further research is expected, and more items may be discovered in the future. A study detailing these findings has been published in the International Journal of Nautical Archaeology, and the discovery was also reported in Popular Mechanics. Michal Grabowski, an archaeologist at the University of Warsaw, described the find as "like a small time capsule," noting that it offers a "small piece of the puzzle" that contributes to a broader understanding of navigation history in the Bay of Greifswald.