The north's economy was mainly textiles in the 1800's and a lot of factor work with all the new inventions being made during this time being and industrial revolution.<span />
Portugal established trading activities in China in 1513 when Jorge Alvares arrived.
In 1517 the King sent a mission and created a trade center at Nei Lingding.
Portugal and Ming Dynasty relationship gradually expanded but was deteriorated when Simão de Andrade arrived at Guangzhou in 1519. He violated their customs and laws, so Chinese people reacted by killing several Portuguese in the streets.
In 1521 the Emperor Zhengde died and the Ming Court lost interest in having relations with foreign countries.
There were two battles:
In 1521, every Portuguese vessel was confiscated and Chinese defeated a Portuguese fleet at The First Battle of Tamao
In 1522, Martim Alfonso de Merlo Coutinho was sent to establish diplomatic relations but the Chinese defeated them at The Second Battle of Tamao.
The Chinese resisted any Portuguese attempt to return. But in 1535 Portuguese Port Traders were allowed to anchor ships in Macau´s harbors and they could trade. Finally, in 1537 the Portuguese establish a little Colony at Macau to be administered by Chinese authorities.
An association relationship is very similar to an N:M or many-to-many relationship except that the intersection table has attributes of its own.
An association relationship are often delineated as matched, one-to-many, or many-to-many. Basically, associate association relationship between 2 or additional objects denotes a path of communication between them in order that one object will send a message to another.
A N:M relationship exists once one or additional things in one table will have a relationship to 1 or additional things in another table. For example: Your Order table contains orders placed by multiple customers, and a client might place quite one order.
To learn more about N:M relationship here
brainly.com/question/28258035
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Depending in which country you live, take an oath
