Lastly for today, tree rings shed new light on Pictish power centre in Scotland with incredible accuracy. Read more here. Scottish trivia time! Yesterday we asked: "Which Scot invented the telephone?" Answer - Alexander Graham Bell. One for today: What is the exact distance of the North Coast 500? Good luck, and don't forget to sign up to our specialist newsletter on our guide to the best golf courses in Scotland. Whatever your plans today, have a good one. From The team at The Scotsman | 