including lack of refrigeration and storage facilities. to solve that issue the people had to get creative with new dishes and creative new ways of storing food. The more we looked, the more we found that people were using all parts of the plant in some way—the leaves, stems, flowers, fruits and seeds. They also used every edible part of animals as well—from fat to bones for making broth or soup. North Africa lies along the Mediterranean Sea and encompasses within its fold several nations, including Morocco, Algeria, Libya, Tunisia, Egypt and Sudan. The roots of North African cuisine can be traced back to the ancient empires of North Africa, particularly in Egypt, where many of the country's dishes and culinary traditions date back to African antiquity. Over several centuries traders, travelers, invaders, migrants and immigrants all have influenced the cuisine of North Africa. The Phoenicians of the 1st century brought sausages, while the Carthaginians introduced wheat and its by-product, semolina. The Berbers adapted semolina into couscous, one of the main staple foods. Olives and olive oil were introduced before the arrival of the Romans. From the 7th century onwards, the Arabs introduced a variety of spices, like saffron, nutmeg, cinnamon, ginger and cloves, which contributed and influenced the culinary culture of North Africa. The Ottoman Turks brought sweet pastries and other bakery products, and from the New World, North Africa got potatoes, tomatoes, zucchini and chili peppers. Most of the North African countries have several similar dishes, sometimes almost the same dish with a different name (the Moroccan tangia and the Tunisian coucha are both essentially the same dish, a meat stew prepared in an urn and cooked overnight in a public oven), sometimes with a slight change in ingredients and cooking style. To add on, two completely different dishes may also share the same name (for example, a tajine dish is a slow-cooked stew in Morocco, whereas the Tunisian tajine is a baked omelette/quiche-like dish). There are noticeable differences between the cooking styles of different nations, from the sophisticated, full-bodied flavors of Moroccan palace cookery to the fiery dishes of Tunisian cuisine and the humbler, simpler cuisines of Egypt and Algeria. Southern Africa The cooking of the region of Southern Africa (not to be confused with the country of South Africa) is sometimes called "rainbow cuisine", as the food in this region is a blend of many cultures: