Table of Contents

Science & Technology — The Year 2009

Developments in science and technology from the year 2009.

| Topic | Description | |—|—| | H1N1 swine flu pandemic | A novel H1N1 influenza strain emerged in Mexico and the United States in April; the WHO declared a Phase 6 pandemic on June 11 — the first influenza pandemic since 1968. | | LHC first proton collisions | The Large Hadron Collider restarted after its 2008 quench incident and achieved first proton-proton collisions at 900 GeV on November 23, resuming the world’s premier particle physics programme. | | Bitcoin genesis block mined | Satoshi Nakamoto mined the first Bitcoin block (Block 0) on January 3, launching the world’s first decentralized cryptocurrency and inaugurating a new era in digital finance. |