In the context of the rights of citizenship, "[t]he term birthright signals not only that membership is acquired at birth or on grounds of birth, but also that membership is presumptively a lifelong status for the individual and continuous across generations for the citizenry as a collective".[6] Birthright citizenship has long been a feature of English common law.[7] Calvin's Case,[9] was particularly important as it established that, under English common law, "a person's status was vested at birth, and based upon place of birth—a person born within the king's dominion owed allegiance to the sovereign, and in turn, was entitled to the king's protection."[10] This same principle was accepted by the United States as being "ancient and fundamental", i.e., well-established common law, as stated by the Supreme Court in its 1898 interpretation of the Fourteenth Amendment to the United States Constitution in United States v. Wong Kim Ark: "the Fourteenth Amendment affirms the ancient and fundamental rule of citizenship by birth within the territory, in the allegiance and under the protection of the country, including all children here born of resident aliens, with the exceptions or qualifications (as old as the rule itself) of children of foreign sovereigns or their ministers, or born on foreign public ships, or of enemies within and during a hostile occupation of part of our territory, and with the single additional exception of children of members of the Indian tribes owing direct allegiance to their several tribes".[11]