用英语向外国人介绍饺子，要交待南方和北方饺子的差异，馅的种类，从什么时候起有饺子

Chinese dumpling (Jiaozi) is generally consists of minced meat and chopped vegetables wrapped into a piece of dough. Popular meat fillings include ground pork, ground beef, ground chicken, shrimp, and even fish. Popular mixtures include pork with Chinese cabbage, pork with celery, lamb with spring onion, leeks with eggs, etc. Chinese dumpling is usually boiled or steamed. the dumpling is a traditional dish eaten during Chinese New Year's Eve and some other festivals. Family members gather together to make dumplings. It is also eaten for farewell to family members or friends.

Another type of Chinese dumpling is maned wonton (dumplings served boiled in a soup), jiaozi have a thicker skin and are bigger，wontons are wrapped in rectangular dough while jiaozi are wrapped in round dough. another obviously diference between jiaozi and wenton is that the northern Chinese likes to eat jiaozi while the southern Chinese likes to eat wonton.

Chinese cuisine includes swe