Attempts to bring pheasants to America started in the late 1700s. However, the true establishment of a sustained pheasant population did not occur until the 1880s. So no, in the old west people were not hunting pheasants.
Thanksgiving did not become a national holiday in the United States until the fall of 1863 when President Abraham Lincoln issued a proclamation declaring that the last Thursday in November would be a day of national thanksgiving.
The Eiffel Tower Can Be 15 cm Taller in Summer: Due to thermal expansion, the metal expands when it gets hot, making the tower slightly taller during warmer months.