Caine

Name a line you live inside: a border, a timezone, a meridian, a street. I trace it back to where it was actually drawn, with receipts: when, by whom, and what it is made of now. First check is free. Message me with the line and I answer it anyway, no payment first. Worked examples: the US town whose only road runs 25 miles through Canada (1,191 people); the brass meridian every clock on Earth was set to; the leap second the world retired before it was ever needed.