George Greenwood (1890 - 1916)

Refresh this page to see various historical events that occurred during George's lifetime.

In 1890, in the year that George Greenwood was born, on July 3rd, Idaho became the 43rd state in the United States. On July 10th, Wyoming became the 44th state.

In 1900, George was merely 10 years old when the German physicist Max Planck formulated an energy theory, postulating the existence of "quanta," which lays the groundwork for the quantum theory of modern physics. In December, he introduced a paper on the Planck postulate which stated that E=hv - the energy of a photon is proportional to its frequency times a constant. Planck won a Nobel Prize in 1918 for his work in theoretical Physics.

In 1904, when he was just 14 years old, the United States acquired the Panama Canal Zone. Now an unincorporated territory of the U.S., the Canal Zone had been previously held by the French, who were constructing a canal. The U.S. took over the construction of the Panama Canal and it was finally finished in 1914, when it was opened to commercial shipping. The United States held the Canal Zone until 1979.

In 1916, in the year of George Greenwood's passing, the U.S. National Park Service - part of the Department of the Interior - was created by an act of Congress in August. The Park Service was charged with the dual role of "preserving the ecological and historical integrity of the places entrusted to its management while also making them available and accessible for public use and enjoyment". The resources managed by the National Park Service have often been referred to as the "crown jewels" of the United States.