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The 1900s (pronounced "nineteen-hundreds") was a decade that began on January 1, 1900, and ended on December 31, 1909. The Edwardian era (1901–1910) covers a similar span of time. The term "nineteen-hundreds" is sometimes also used to mean the entire century from January 1, 1900 to December 31, 1999 (the years beginning with "19"). During the decade, the world population increased from 1.60 to 1.75 billion, with approximately 580 million births and 450 million deaths in total.