Which of these four republics was the first to be founded?

Here are the answer options in reverse date order.

The Federal Republic of Germany was formally declared on 23 May 1949. The term originally applied only to West Germany (formed from the British, French and US occupation zones); from 3 October 1990 it applied to the reunited Germany.

The French Republic was declared on 22 September 1792.

The United States of America declared independence from Great Britain on 4 July 1776 and created its Constitution on 17 September 1787 (becoming effective on 4 March 1789).

The Dutch Republic -- otherwise known as the Republic of the Seven United Netherlands -- was a federal republic which existed from 12 April 1588 (during the Dutch Revolt) to 19 January 1795 (the Batavian Revolution). It was a predecessor state of the Netherlands and the first fully independent Dutch nation state.