Baby boomers, often shortened to boomers, are the demographic cohort preceded by the Silent Generation and followed by Generation X. The generation is often defined as people born from 1946 to 1964 during the mid-20th century baby boom. By this dating, the youngest of them will become 61 in 2025, while the oldest will become 79 in 2025. The dates, the demographic context, and the cultural identifiers may vary by country.