The Great Wall of China is the longest building on earth with a length of 13,170 miles. Made from a combination of brick, stone, wood and other materials, it was originally constructed primarily to serve as a defence against the nomadic invasions from the north that threatened Chinese states / empires.
Answer: can u be more specific
Explanation:
Specifically, the reasons included trade restrictions brought about by Britain’s ongoing war with France, the impressment of American merchant sailors into the Royal Navy, British support of American Indian tribes against American expansion, and outrage over insults to national honor after humiliations on the high seas.
It contributed to the rise of the Ottoman Empire. When the Byzantine Empire ended, the Ottomans received a strong trade port affecting Mediterranean-black sea trade zones.<span />