Being the First President of the United States, George Washington established precedents which will be of use to future Presidents of the United States.
Some of the precedents were:
1) Establishment of a Cabinet within the Executive Branch of the United States Government.
As president, George Washington appointed Thomas Jefferson as Secretary of State and Alexander Hamilton as Secretary of Treasury. This power to appoint people in position was not outlined.
2) Supported innovative fiscal concepts such as the establishment of Bank of America and national debt
3) Introduced the policy of neutrality pertaining to foreign wars (isolationism). This policy ended after WWII when the US soldiers assigned overseas were intentionally targeted.
4) Set the two term limit of serving as president.
5) Established great relations with Great Britain through Jay's Treaty.
6) Established the tradition of a Presidential farewell address.
In general, yes, it is true that the Texas fight for independence was led by Sam Houston. But the question is a bit misleading because his greatest achievement was actually not only taking Texas from Mexico, but bringing it into the United States.
C. The new government needs to balance order and liberty.
<span>A. Japan was isolated from Europe.</span>
The first Korean Kingdom was 고조선, whose founder was 단군왕검.