The history of banking began with the first prototype banks, that is, the merchants of the world, who gave grain loans to farmers and traders who carried goods between cities. This was around 2000 BCE in Assyria, India and Sumeria. Later, in ancient Greece and during the Roman Empire, lenders based in temples gave loans, while accepting deposits and performing the change of money. Archaeology from this period in ancient China and India also shows evidence of money lending. Many scholars trace the historical roots of the modern banking system to medieval and Renaissance Italy, particularly the affluent cities of Florence, Venice and Genoa. The Bardi and Peruzzi families dominated banking in 14th century Florence, establishing branches in many other parts of Europe. The most famous Italian bank was the Medici Bank, established by Giovanni Medici in 1397. The oldest bank still in existence is Banca Monte dei Paschi di Siena, headquartered in Siena, Italy, which has been operating continuously since 1472. Until the end of 2002, the oldest bank still in operation was the Banco di Napoli headquartered in Naples, Italy, which had been operating since 1463. Development of banking spread from northern Italy throughout the Holy Roman Empire, and in the 15th and 16th century to northern Europe. This was followed by a number of important innovations that took place in Amsterdam during the Dutch Republic in the 17th century, and in London since the 18th century. During the 20th century, developments in telecommunications and computing caused major changes to banks' operations and let banks dramatically increase in size and geographic spread. The financial crisis of 2007–2008 caused many bank failures, including some of the world's largest banks, and provoked much debate about bank regulation. Ancient authority The shift from a reliance on hunting and gathering of foods to agricultural practices, starting sometime after 12,000 BCE, resulted in increased stability of economic relations. Such changes in socio-economic conditions began approximately 10,000 years ago in the Fertile Crescent, about 9,500 years ago in northern China, about 5,500 years ago in Mexico, and approximately 4,500 years ago in the eastern parts of the United States. Monetary Ancient types of money known as grain-money and food cattle-money were used from around 9000 BCE as two of the earliest commodities used for purposes of bartering. Anatolian obsidian as a raw material for Stone Age tools was being distributed from as early as