请将下面这段话翻译成英文:
南朝
南朝(420-589年)是东晋之后建立于南方的四个朝代的总称。继公元420年东晋灭亡,在中国的南方地区相继出现了宋、齐、梁、陈四个汉族政权,与鲜卑族在北方建立的政权对峙,而它们的存在时间都较短。其中最长的不过59年(刘宋),最短的仅23年(萧齐),是中国历史上朝代更迭较快的一段时间。此时,中国正处于南北分治时期。它与北方的元魏、北齐、北周并称南北朝。
参考译文
The Southern Dynasties
The Southern Dynasties (420-589) is the general name of four dynasties in southern China after the Eastern Jin Dynasty. Following the end of the Eastern Jin Dynasty in 420AD, southern China saw four regimes established by the Han people—Song, Qi, Liang and Chen, in confrontation with the regime established by the Xianbei people. They featured short existence ranging from 23 (Xiao Qi) to 59 years (Liu Song). So, it is a period in Chinese history featured by fast changes of dynasties. And during that time, China was in a period of separation between the southern and the northern parts. They are known as the southern and northern dynasties in combination with Yuan, Wei, Northern Qi and Northern Zhou in northern China.