William Johnson, Wilcox v. Executors of Plummer…
“ Uncommon delay was a breach of that promise, and a case of action. It is not at all material to this cause of action, whether the full extent of damage was then ascertained or not ascertained. It was enough that there was a cause of action. From that moment the statute began to run. The law regards the time when the cause of action arises, not the time when the degree of injury, more or less, is made manifest; and when the cause of action is a breach of promise or neglect of duty, the right to sue arises immediately on that breach of promise or neglect of duty ”
