The first fully ocean going ship in Europe, the Carrack is a four-masted vessel developed in the Mediterranean during the 15th century, and later used throughout Europe.
You might just think of tides as the ocean going in and out every day, but in fact what astronomers call tides are a subtle but inexorable force that have literally shaped most objects in the Universe.
The other two with their rising proportions of trash from Asia which is too far from the island for it to have floated there strongly suggest it was cruise empties being flung from ocean going vessels.