Ancient Greece and wine have been uncovered by archaeologists, demonstrating the scope of Greek influence. A shipwreck discovered off the coast of southern France included nearly 10,000 amphoras containing nearly of Greek wine, presumably destined for trade up the Rhône and Saône rivers into Gaul. It is estimated that the Greeks shipped nearly 10 million liters of wine into Gaul each year through Massalia. In 1929, the discovery of the Vix Grave in Burgundy included several artifacts demonstrating the strong ties between Greek wine traders and local Celtic villagers. The most notable of these was a large Greek-made krater, designed to hold over of
Leyden jar van Musschenbroek of Leiden (Leyden) in 1745–1746. The invention was named after the city. The Leyden jar was used to conduct many early experiments in electricity, and its discovery was of fundamental importance in the study of electrostatics. The Leyden jar was the first means of accumulating and preserving electric charge in large quantities that could be discharged at the experimenter's will, thus overcoming a significant limit to early research into electrical conduction. Leyden jars are still used in education to demonstrate the principles of electrostatics. The Ancient Greeks already knew that pieces of amber could attract lightweight particles after