Ever since humans first began to trade assets of any kind, the need arose to record those trades to keep an account of what was owed, to whom, and to record tax payments, even measure the wealth of kingdoms. Civilisations are built on ledgers.How Ledgers EvolvedIn Mesopotamia, merchants used clay tablets to record transactions. Papyrus scrolls were used in Egypt. In China, bamboo strips were used and later replaced with silk and paper. In India birch bark, palm leaves and copper plates. Ancie...