evidence: U.S. Unincorporated Possessions 1634 Reef first shown on Dutch maps. 1654 Named Bajo Nuevo Bank. 1660 Re-discovered by the English. 22 Nov 1869 Claimed by U.S. by James W. Jennett (also called Petrel Islands). 8 Sep 1972 Bajo Nuevo is specifically not mentioned by U.S. in list of guano islands renounced to Colombia. Territorial Dispute: Claimed by Jamaica and possibly Honduras (until 20 Dec 1999); Colombia considers Bajo Nuevo Bank apart of the Providence Archipelago in the intendancy of San Andres y Providencia. [...] 1510 Serranilla Bank first shown on Spanish maps. 8 Sep 1879 Claimed by the U.S (located two hundred ten miles north northeast of Nicaragua). 8 Sep 1972 Serranilla Bank specifically not mentioned by U.S. in list of guano islands renounced to Colombia.