Meriwether Lewis and William Clark, the leaders of the 1804-1806 Lewis and Clark expedition, begin a new journey when the United States Postal Service (USPS) issued three commemorative postage stamps honoring each adventurer and their joint command to map and explore the lands west of the Mississippi (MS)

In the first grade, students understand chronological sequencing of events by creating basic timelines. Students participate in shared research using biographies and informational text the contributions of historic figures in American history including Squanto, the Pilgrims, George Washington, Benjamin Franklin, Paul Revere, Thomas Jefferson, Meriwether Lewis, William Clark, Sacagawea, Daniel Boone, Abraham Lincoln, and George Washington Carver. Students identify the significance of historic places and monuments and describe their connection to real events of the past including the Plimoth Plantation, Mount Vernon, Washington Monument, Lincoln Memorial. Students commemorate the contributions to the American nation of significant groups including National Hispanic History Month, Native American Heritage Month, and Black History Month.