In October 1935, during a transatlantic voyage from Europe to New York, a child was born aboard the Dutch ocean liner SS Rotterdam in the middle of the Atlantic Ocean. The birth triggered an extraordinary legal conundrum known as a jurisdiction clash under maritime law. Under the traditional Law of the Flag, a vessel on the high seas is considered floating territory of the nation whose flag it flies.
Thus, Dutch law governed the ship itself. However, the parents were Polish emigrants traveling on Nansen passports, and the ship was currently floating outside the territorial waters of any nation. At the time, Dutch nationality law was strictly based on jus sanguinis (right of blood), meaning a child only acquired Dutch citizenship if born to a Dutch father.
Because the father was not a Dutch citizen, the child could not claim Dutch nationality despite being born on a Dutch-registered vessel. Meanwhile, the country of destination, the United States, granted citizenship based on jus soli (right of the soil), but international waters did not count as American territory. To compound the crisis, Polish citizenship laws required official registration at a home consulate within a strict timeframe that could not be met at sea.
For several days while the ship churned across the ocean, the child existed in a legal limbo, effectively stateless in a jurisdictional dead-zone. The ship captain had to issue a special maritime birth certificate under international maritime conventions, leading to diplomatic interventions upon arrival in New York Harbor where emergency immigration waivers were granted.