41. It was proposed by Huffman that settlement patterns could provide insight into understanding these prehistoric societies. 42. The second settlement layout followed Roman settlement patterns . 43. Further studies in the 1980s consolidated earlier findings and worked out settlement patterns in the wider area. 44. The Chinese were the only ethnic group with a significant settlement pattern in Houston until the 1970s. 45. Second, this shift in settlement patterns appears to have been catalyzed by a marked change in climate. 46. Toponyms not only illustrate ethnic settlement patterns , but they can also help identify discrete periods of immigration. 47. Overall, little archaeological evidence suggests major shifting settlement pattern during this time on the East European plain. 48. This reflects historic settlement patterns when the area had been developed for commodity agriculture and large plantations. 49. The thesis intended to propose a new approach to the study of the settlement patterns of the ?Akkr. 50. In the early 20th century settlement patterns and population distribution were changing due to a number of factors.