What significant event took place in Cayman on July 4, 1959?

The significant event that took place in Cayman on July 4, 1959, was the enactment of the first written constitution. This milestone marked an important moment in the political and administrative development of the Cayman Islands, as it established a framework for governance and the relationship between the islands and the United Kingdom.

The 1959 constitution provided a basis for local governance, introducing elected representatives and formalizing a legislative body that allowed for greater self-determination. This foundational document laid the groundwork for future political evolution in the Cayman Islands and contributed to the islands' ongoing development within the context of British Overseas Territory governance.

Establishment of the first political party, creation of the Legislative Council, and the start of tourism promotion did not specifically occur on that date and are not linked to the constitutional changes that took place, making them less relevant to this significant event.