By the 16th century and again in the 19th century, northYemen was part of the Ottoman Empire, and in some periods its Imams exerted control over south Yemen.
16世纪和19世纪北也门成为奥托曼帝国的一部分；在一些时期，伊玛目控制了南也门。
2
After the union between north and south Yemen in 1990 both the northern rial and the southern dinar remained legal tender.
1990年南北也门合并后，北方的里尔和南方的第纳尔都是合法货币。
3
Saudi Arabia has also been concerned by what it sees as Iranian meddling in Yemen in support of the rebellion by the Houthis (a Shiite minority in the north).