The two achievements of the Tigris-Euphrates River Valley Civilization are building the temple and the invention of the wheel.
The answer is <span> Norman Triplett
</span><span> Norman Triplett was an active cyclist who conducted on observation whether cyclists performed better if they're alone or if they're in the presence of other cyclists.
</span>As it turn out, cyclists tend to try harder on their performance if they're in the presence of other cyclists.
<span>United States Constitution prohibits the making of any law respecting an establishment of religion, impeding the free exercise of religion, abridging the freedom of speech, infringing on the freedom of the press, interfering with the right to peaceably assemble</span>
