WEEKLY LAUNCH: TIME LINE
INTERACTIVITY
NATURE ROCKS 1901–1909: Theodore Roosevelt 1845–1846: Writer Henry David Thoreau lives alone in a cabin in the woods. Later, he writes a book, Walden, about his experiences living in nature.
1825
1850
1875
1872: Yellowstone National Park becomes the first U.S. national park. The government says that the park is “for the benefit and enjoyment of the people.”
430
serves as president of the United States. During his time in office, the United States passes laws to keep many wild areas from being destroyed.
1900
1925
1950