By Milo Boyd The oldest hotel in the world has been in the same family for the past 52 generations. In the UK – a country which is not short of ancient relics and buildings dating back hundreds and thousands of years – the oldest company is the Royal Mint. For the past 1,150 years the firm has been pumping out coins and bank notes on behalf of the British people. Even ignoring the fact that it has somewhat of an advantage being owned by the state, the Mint comes across as a mere start-up compared to Japan and the world’s oldest hotel – the Keiunkan Inn. The hotel dates back a remarkable 1,300 …