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Following the Battle of Hakusukinoe against Tang China and Silla in 663 AD that led to a Japanese retreat from Korean affairs, Japan underwent widespread reform. One of the most important was that of the Taika Reform, issued by Prince Naka no Oe (Emperor Tenji) in 646 AD. This edict allowed the Japanese aristocracy to adopt the Tang dynasty political structure, bureaucracy, culture, religion, and philosophy. As part of the Taiho Code, of 702 AD, and the later Yoro Code, the population was required to report regularly for census, a precursor for national conscription. With an understanding of how the population was distributed, Emperor Mommu introduced a law whereby 1 in 34 adult males was drafted into the national military. These soldiers were required to supply their own weapons, and in return were exempted from duties and taxes. This was one of the first attempts by the Imperial government to form an organized army modeled after the Chinese system. It was called "Gundan-Sei" () by later historians and is believed to have been short-lived.[citation needed]

When was the Taika Reform?
Answer: 646 AD
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The brain is an organ that serves as the center of the nervous system in all vertebrate and most invertebrate animals. Only a few invertebrates such as sponges, jellyfish, adult sea squirts and starfish do not have a brain; diffuse or localised nerve nets are present instead. The brain is located in the head, usually close to the primary sensory organs for such senses as vision, hearing, balance, taste, and smell. The brain is the most complex organ in a vertebrate's body. In a typical human, the cerebral cortex (the largest part) is estimated to contain 1533 billion neurons, each connected by synapses to several thousand other neurons. These neurons communicate with one another by means of long protoplasmic fibers called axons, which carry trains of signal pulses called action potentials to distant parts of the brain or body targeting specific recipient cells.

In people, how many neurons make up the cerebral cortex?
Answer: 1533 billion
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The United States took control of the island in the 1898 SpanishAmerican War, as part of the Treaty of Paris. Guam was transferred to U.S. Navy control on 23 December 1898 by Executive Order 108-A. Guam came to serve as a station for American ships traveling to and from the Philippines, while the Northern Mariana Islands passed to Germany, and then to Japan. A U.S. Navy yard was established at Piti in 1899, and a marine barracks at Sumay in 1901.:13 Following the PhilippineAmerican War, Emilio Aguinaldo and Apolinario Mabini were exiled on Guam in 1901.:vi

Which two people were exiled to Guam after the Philippine-American war?
Answer:
Emilio Aguinaldo and Apolinario Mabini