The Applied History course at the Stockholm School of Economics highlights the importance of history for understanding today's world order. It teaches students how a deep historical understanding, a "historical sensibility", can expand their knowledge of contemporary policy issues while providing insights into how important decisionmakers have used and misused history. In 2023, the fourth edition of the course was given. In accordance with the motto "small groups, big ideas," twelve students participated in seminars led by an international group of scholars on topics from the Peloponnesian War to today's crisis of the international order. This anthology contains the students' final essays from the 2023 course, and showcases how they apply historical insights to contemporary challenges of their own choosing.