https://www.smithsonianmag.com/rss/tag/theodore-roosevelt/RSS feed for Theodore RooseveltenTue, 30 Jun 2026 11:45:00 +0000https://www.smithsonianmag.com/history/during-world-war-i-this-woman-asked-americans-to-welcome-immigrants-and-urged-new-arrivals-to-assimilate-180989035/Progressive reformer Frances Kellor spearheaded efforts to celebrate Americanization Day, arguing that immigrants should fully embrace U.S. culture to better adapt to life in their new homeTue, 30 Jun 2026 11:45:00 +0000https://www.smithsonianmag.com/history/during-world-war-i-this-woman-asked-americans-to-welcome-immigrants-and-urged-new-arrivals-to-assimilate-180989035/