Zanzibar Revolution with Tanganyika to form the new nation of Tanzania, an act judged by contemporary media to be an attempt to prevent communist subversion of Zanzibar. The revolution ended 200 years of Arab dominance in Zanzibar, and is commemorated on the island each year with anniversary celebrations and a public holiday. The Zanzibar Archipelago, now part of the Southeast African republic of Tanzania, is a group of islands lying in the Indian Ocean off the coast of Tanganyika. It comprises the main southern island of Unguja (also known as Zanzibar), the smaller northern island of Pemba, and numerous surrounding islets. With
Zanzibar rate slightly higher in females (0.7 percent) than males (0.5 percent). The northern part of the island presents elevated volumes of trash in the streets, beaches and the ocean—mostly plastic bottles, other plastics and cigarette butts. There is indiscriminate dumping in residential areas. Ancient pottery implies trade routes with Zanzibar as far back as the time of the ancient Assyrians. Traders from the Arabian Peninsula, the Persian Gulf region of modern-day Iran (especially Shiraz), and west India probably visited Zanzibar as early as the 1st century. They used the monsoon winds to sail across the Indian Ocean to land at