British cuisine developed from various influences reflective of its land, settlements, arrivals of new settlers and immigrants, trade and colonialism. Celtic agriculture and animal breeding produced a wide variety of foodstuffs for indigenous Celts and Britons. Anglo-Saxon England developed meat and savoury herb stewing techniques before the practice became common in Europe. The Norman conquest introduced exotic spices into England in the Middle Ages. The British Empire facilitated a knowledge of Indian cuisine with its "strong, penetrating spices and herbs". British cuisine has absorbed the cultural influence of those who have settled in Britain, producing many hybrid dishes, such as the Anglo-Indian chicken tikka masala.