= Timeline of nuclear weapons development
{wiki=Timeline_of_nuclear_weapons_development}
The timeline of nuclear weapons development encompasses several key events and milestones in the history of nuclear physics, military tactics, and international relations. Here’s a concise overview: \#\#\# Early Discoveries (1896 - 1938) - **1896**: Henri Becquerel discovers radioactivity. - **1905**: Albert Einstein publishes the theory of relativity, introducing the mass-energy equivalence principle (E=mc²).
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