They arrived roughly around A.D. 800 and subsisted chiefly from fishing. He rarely ate much food and often subsisted on crackers and milk. The Parthian empire subsisted for five centuries, longer than most Eastern Empires. Richard Cromwell subsisted in straitened circumstances after his resignation. They generally settled in rural areas, where they subsisted typically as peddlers and hawkers. Villagers subsisted on agriculture and hunting. In Peru, the Incas subsisted on maize in the lowlands and potatoes at higher altitudes. The Lewis and Clark Expedition sometimes subsisted on pawpaws during their travels. They subsisted primarily on fish and gathered roots and seeds. They subsisted on caribou year-round, eating dried caribou meat in the winter. They subsisted by hunting walrus and whale and by fishing. The people would have subsisted by farming and cattle raising. Early residents subsisted on agriculture and hunting. The Lakota once subsisted on the bison hunt, and on corn. The majority of these immigrants were Ashkenazi Jews from Eastern Europe, who subsisted on Halukka.