But to answer your afrocentric question, the different empires each had their own established slave networks and infrastructure in Africa (logistics as has already been stated), see: 1  Arab slave trade. 2  Barbary slave trade. 3  Slavery in the Ottoman Empire.
Asparagus is a vegetable belonging to the lily family, which also includes onions, leeks and garlic. Eat asparagus as part of a heart-healthy diet, as it contains no fat, no cholesterol and very little sodium.
Studies have not established the effect of asparagus on breast cancer. Like onions and garlic, asparagus (Asparagus officinalis) is a member of the lily family (Liliaceae). Asparagus is a good dietary source of vitamin A (from its beta-carotene content), vitamin C, folate and fiber.Asparagus also contains significant levels of glutathione, rutin, quercetin, zeaxanthin, ferulic acid, and various saponins, most of which have been reported to have anti-cancer properties.iosgenin, an asparagus steroidal saponin also found in fenugreek and yams, has been shown to inhibit tumor growth in both estrogen positive (ER+) and estrogen negative (ER-) breast cancer tumors implanted in mice.