The Pommern, formerly the Mneme (1903–1908), is a four-masted barque that was built in 1903 in Glasgow at J. Reid & Co shipyard. It was one of the Flying P-Liners, the famous sailing ships of the German shipping company F. Laeisz. Later she was acquired Gustaf Erikson of the Finnish Åland archipelago, who used the ship to carry grain from the Spencer Gulf area in Australia to harbours in England or Ireland until the start of World War II. After World War Two, she was donated to the town of Mariehamn as a museum ship.
Today Pommern is part of the Åland Maritime Museum representing the history of ship and seafaring in Åland. The Maritime Museum is considered as one of the world’s finest museums related to merchant sailing ships.
The Walls of Constantinople are a series of defensive stone walls that have surrounded and protected the city of Constantinople (today Istanbul) since its founding as the new capital of the Roman Empire by Constantine the Great. With numerous additions and modifications during their history, they were the last great fortification system of antiquity, and one of the most complex and elaborate systems ever built. They were also the largest and strongest fortification in both the ancient and medieval world.
Initially built by Constantine the Great, the walls surrounded the new city on all sides, protecting it against attack from both sea and land. As the city grew, the famous double line of the Theodosian Walls was built in the 5th century. Although the other sections of the walls were less elaborate, they were, when well-manned, almost impregnable for any medieval besieger.