The 21st century
3,008 sourced entries across 26 documented years, grouped into 3 decades. A century here runs 1900–1999 rather than 1901–2000, so its decades sit inside it exactly.
Decades
By subject
- Conflict & Security in the 21st century — 500 entries
- Geopolitics & Diplomacy in the 21st century — 486 entries
- Science & Discovery in the 21st century — 351 entries
- Climate & Environment in the 21st century — 286 entries
- Disasters & Accidents in the 21st century — 276 entries
- Culture & Society in the 21st century — 249 entries
- Crime & Justice in the 21st century — 213 entries
- Health & Medicine in the 21st century — 155 entries
- Economy & Finance in the 21st century — 148 entries
- Technology & Infrastructure in the 21st century — 145 entries
- Religion & Belief in the 21st century — 73 entries
- Exploration & Expansion in the 21st century — 45 entries