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| | PBS Online - Lewis and Clark |
 | | Lewis, now picked as commander, is sent to Philadelphia for instruction in botany, zoology, celestial navigation, medicine from nations leading scientists. |
 | | Expedition marks first Fourth of July ever celebrated west of the Mississippi by firing keelboats cannon, drinking extra ration of whiskey, and naming a creek (near what is now Atchinson, Kansas) Independence Creek. |
 | | Clark notes a temperature of 45 degrees below zero colder, John Ordway adds, than I ever knew it be in the States. A week later, on Christmas Eve, Fort Mandan was considered complete and the expedition had moved in for the winter. |
| www.pbs.org /lewisandclark/archive/time (844 words) |
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