The Bronze Age had many long distance trade networks. Tin and precious stones from Afghanistan, cedar and resin from Lebanon, ivory and wood from Punt (Yemen or the Horn of Africa, still debated), copper from Cyrus, pottery from mainland Greece, amber from the Baltic, olives from Italy and much more were to be found in the Egyptian market places.

If you want to get a good overview of the vastness of international networks I'd recommend Eric Cline's 1177: the year civilization collapsed.

The basic design of the hull is known, the experts were particularly interested by the many repairs and upgrades done to the ship. A layer of pine was attached to the outside and two layers of oak to the inside of the hull. They want to find out how effective it was (I mean, the ship sunk but still) and how common this was.

Modern historians do much more than just record keeping. It's more about analysing the available material and drawing conclusions from that than going into the archives to try and discover new information since most of that has been done already by earlier historians following Von Ranke's 19th-century example.