Kernrechtsfrage
Whether the damages claim under Art. 67 OR was time-barred under Art. 69(1) OR.
Extrahierter Entscheid
The limitation period ran from knowledge of the damage and the responsible person; the plaintiffs' later realization through the cantonal judgment did not restart it.
Extrahierte Begründung
Art. 69(1) OR concerns cases where the tortfeasor must be ascertained or is uncertain. Here, the plaintiffs knew from the outset that either the canton or the municipality could be responsible and had to act accordingly to interrupt time against the true debtor.