Volcano an extinct volcano from a dormant (inactive) one. Dormant volcanoes are those that have not erupted for thousands of years, but are likely to erupt again in the future. Volcanoes are often considered to be extinct if there are no written records of its activity. Nevertheless, volcanoes may remain dormant for a long period of time. For example, Yellowstone has a repose/recharge period of around 700,000 years, and Toba of around 380,000 years. Vesuvius was described by Roman writers as having been covered with gardens and vineyards before its eruption of 79 CE, which destroyed the towns of Herculaneum and
Dormant Commerce Clause Treasury of MD. v. Wynne", the Court addressed Maryland's unusual practice of taxing personal income earned in Maryland, and taxing personal income of its citizens earned outside Maryland, "without" any tax credit for income tax paid to other states. The Court held this sort of double-taxation to be a violation of the dormant Commerce Clause. The Court faulted Justice Antonin Scalia's criticism of the dormant Commerce Clause doctrine by saying that he failed to "explain why, under his interpretation of the Constitution, the Import-Export Clause would not lead to the same result that we reach under the dormant Commerce Clause".