HOW TO: Distinguishing Domicil v. Domicile

The legal architecture of the American Republic rests upon a precise linguistic and jurisdictional divide: the distinction between domicile and domicil.

While modern usage often treats them as synonyms, the Supreme Court has historically used them as distinct “rods” to measure physical location versus civil status.

In the wake of Erie Railroad Co. v. Tompkins, 304 U.S. 644 (1938), this distinction reveals a profound irony: babies born in “Equal Footing” states possess only a state-rooted status, while naturalized persons and those born in federal territories possess a direct federal domicil.

1. The Two Rods: Location vs. Status

The terms originate from Emer de Vattel’s Law of Nations, but were bifurcated by the U.S. Supreme Court to solve the “Alien Problem.”

• Domicil (The Status): In the beginning of the Ennis v. Smith, 55 U.S. 400 (1852) opinion, the Court used “domicil” (without the “e”) to establish a “civil status.” The Court held that “His declarations are to be received as proof that his domicil was in France” [55 U.S. 400, 422 (1852)]. Here, “domicil” refers to the legal character that determines which nation’s laws govern a person’s rights and estate.
• Domicile (The Location): In the same opinion, the Court transitioned to “domicile” (with an “e”) when discussing the physical evidence of where a person lived. The Court noted that in “questions of domicile,” a person’s “habitation fixed in any place” creates a “domicile of choice” [55 U.S. 400, 423]. This usage follows the maritime definition in The Venus [12 U.S. 253, 278 (1814)], where “domicile” denotes the physical “seat of commerce.”

2. The Death of Federal General Common Law

It is vital to distinguish between federal common law, which still exists in specific areas like maritime or interstate disputes, and federal general common law, which was abolished. While Ennis and Wong Kim Ark [169 U.S. 649 (1898)] relied on a “federal general common law” of jus soli to define status, Erie Railroad Co. v. Tompkins, 304 U.S. 644 (1938) ruled that “there is no federal general common law.”

This ruling stripped federal courts of the power to create a universal, “general” rule of birthright status that overrides state law. Because the Constitution “does not in words say who shall be natural-born citizens” [Minor v. Happersett, 88 U.S. 162 (1875)], the power to define the “domicil of origin” (status) for those born in a state reverted to the states under their “residuum of sovereignty” [Coyle v. Smith, 221 U.S. 559 (1911)].

3. Erie and the Death of Federal [General] Common Law

The common law doctrine of jus coli is used to define birthright citizenship. In U.S. v. Wong Kim Ark, 169 U.S. 649 (1898), the U.S. Supreme Court relied on a “federal general common law” of jus soli to define birthright citizenship. However, Erie v. Tompkins (1938) ruled that “there is no federal general common law.” This stripped the federal courts of the power to create a universal rule of jus soli.

Because the Constitution “does not in words say who shall be natural-born citizens” [Minor v. Happersett, 88 U.S. 162 (1875)], the power to define the “domicil of origin” reverted to the states under their “residuum of sovereignty” [Coyle v. Smith, 221 U.S. 559 (1911)].

4. The Irony of Equal Footing

This creates a bifurcated system of status. Babies born in the fifty states—the “Equal Footing” states—acquire their domicil (status) solely from state common law.

Since there is no federal common law jus soli, these babies do not possess a federal domicil of origin. Their federal citizenship is merely a derivative “political status” that attaches to their primary state-level civil status.

In contrast, two groups possess a direct federal domicil:

• Minor State/Territory Babies: Those born in D.C. or territories under the “complete sovereignty” of the federal government are born where federal common law still exists as the local law. They receive a federal domicil of origin because the Union is their only sovereign.
• Naturalized Citizens: By “absolutely and entirely renouncing” foreign allegiance under a federal statute, these individuals receive a perfected domicil directly from the federal government.

4. Summary

The “Equal Footing” baby is a citizen of their state first, holding a state domicil that the federal government recognizes. Ironically, it is the naturalized immigrant and the resident of a federal territory who hold a direct federal domicil.

By understanding that domicile is merely where one lives, but domicil is the sovereign status one holds, we see that the American “natural-born” status is not a federal creation, but a state-rooted civil condition that survives as a remnant of the states’ original sovereignty.