Britannica's 2025 Year in Review
Britannica's 2025 Year in Review
Relive the big events of 2025.
Encyclopædia Britannica, Inc.
Media Editor:
Lee Goldstein
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© Open University (A Britannica Publishing Partner)Learn how historians use secondary sources to understand past events, such as the creation of the London Metropolitan Police Department by Sir Robert Peel.
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Schmidt Ocean InstituteBiologists consider the colossal squid (Mesonychoteuthis hamiltoni) either the largest or second largest invertebrate in the world, both titles being shared jointly with the giant squid (genus Architeuthis).
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Encyclopædia Britannica, Inc.Historical interpreter Stephen Seals talks about how he educates the public on the history of slavery at colonial Williamsburg.