Menorca or Minorca (from , later Minorica) is one of the Balearic Islands located in the Mediterranean Sea belonging to Spain. Its name derives from its size, contrasting it with nearby Mallorca. Its capital is Mahón (Maó), situated on the island's eastern end, although Menorca is not a province and forms a political union with the other islands in the archipelago. Ciutadella and Mahon are the main ports and largest towns. The port of Mahon is the second biggest natural port in the world. Menorca had a population of 96,733 at the Census of 1 January 2021,. It is located 39°47' to 40°00'N, 3°52' to 4°24'E. Its highest point, called El Toro (from Catalan "turó" meaning hill), is above sea level. The island is known for its collection of megalithic stone monuments: navetes, taules and talaiots, which indicate very early prehistoric human activity. Some of the earliest culture on Menorca was influenced by other Mediterranean cultures, including the Greek Minoans of ancient Crete (see also Gymnesian Islands). For example, the use of inverted plastered timber columns at Knossos is thought to have influenced early peoples of Menorca in imitating this practice. The end of the Punic wars saw an increase in piracy in the western Mediterranean. The Roman occupation of Hispania had meant a growth of maritime trade between the Iberian and Italian peninsulas. Pirates took advantage of the strategic location of the Balearic Islands to raid Roman commerce, using both Menorca and Mallorca as bases. In reaction to this, the Romans invaded Menorca. By 123 BC both islands were fully under Roman control, later being incorporated into the province of Hispania Citerior. In 13 BC Roman emperor Augustus reorganised the provincial system and the Balearic Islands became part of the Tarraconensis imperial province. The ancient town of Mago was transformed from a Carthaginian town to a Roman town. The island had a Jewish population. The Letter on the Conversion of the Jews by a fifth-century bishop named Severus tells of the forced conversion of the island's 540 Jewish men and women in AD 418.