The theme for 2004's National History Day is "Exploration, Encounter, Exchange in History." This is a broad theme, so topics should be carefully selected and developed in ways that best reflect student talents and abilities. Studies should include an investigation into available primary and secondary sources, analysis of the evidence, and a clear explanation of the relationship of the topic to the theme. Materials in this National History Day Curriculum Book are divided into eleven sections: (1) "What Is National History Day?"; (2) "Theme Narrative: Exploration, Encounter, Exchange in History"; (3) "Sample Topics for This Year's National History Day Theme"; (4) "Exploring NARA's Online Catalog, ARC, for Primary Sources"; (5) "Russia's March to the Pacific"; (6) "White House Encounters on the Web"; (7) "Exploring America's Past through Music: Resources on the Irish-American Experience"; (8) "Patriots and Loyalists: A Revolutionary Encounter"; (9) "Lewis and Clark: Across the Cultural Landscape"; (10) "Changing Hands: The American Economy and the Exchange of Power and Money during World War I"; and (11) "The Encounter with America through Numbers: Immigration and Demography." (BT)