 At its peak power, the Imamate was able to expel the Portuguese colonizers out of Oman and established a sea power that extended its empire to the Persian Gulf and East Africa during the 17th century.Even though the Imamate was isolated by the Hajar Mountains and the Empty Quarter desert, it had extensive global trade, as it exported dried dates, limes and handmade cotton textiles, and imported other products.The majority of trade happened with the Indian subcontinent.