History
Southern Arabia was the land the Romans called Arabia Felix, "Fortunate Arabia", rich from the trade in frankincense and myrrh and from control of the sea route to India. The kingdom of Saba (biblical Sheba) built the great dam at Marib around the eighth century BC, and its collapse centuries later passed into legend. Judaism and Christianity took root before Islam arrived in the seventh century, and a Zaydi Shia imamate was established in the northern highlands around 897, ruling in various forms for over a thousand years.
The Ottomans held parts of Yemen intermittently, and Britain seized the port of Aden in 1839 as a coaling station on the route to India, developing it into a major harbour and, later, a protectorate over the surrounding sultanates. In 1962 a coup and civil war ended the imamate in the north, creating the Yemen Arab Republic; when Britain withdrew from Aden in 1967, the south became the People's Democratic Republic of Yemen, the only Marxist state in the Arab world. The two Yemens united in 1990 under Ali Abdullah Saleh, who had led the north, though a southern secession attempt in 1994 was crushed.
Saleh's three-decade rule ended in 2011–12 amid Arab Spring protests. The Houthi movement — Zaydi revivalists from the far north — swept into Sana'a in 2014–15, and a Saudi-led coalition intervened to restore the internationally recognised government, with Iran backing the Houthis. The war has killed an estimated 150,000 people in fighting and hundreds of thousands more through hunger and disease, displaced millions, split the country between Houthi-run north and west and government- and southern-separatist-held south and east, and produced what the UN has repeatedly called the world's worst humanitarian crisis.
- Yemen: Arabia Felix and the Broken State — The fertile corner of Arabia the Romans called "the happy land" — home of the incense kingdoms and the Queen of Sheba, split into a northern imamate and a British colony at Aden, unified in 1990, and since 2014 the scene of a devastating war and humanitarian catastrophe
