A thousand years ago, for reasons we will never know, the residents of a tiny farmstead on the coast of central Norway filled an old well with dirt. Maybe the water dried up, or maybe it became foul. But when archaeologists found the old well and dug it up in the summer of 2016, they discovered an unexpected surprise: a carefully carved toy, a wooden boat with a raised prow like a proud Viking ship, and a hole in the middle where a mast could have been stepped.