Chú thích Augustus_De_Morgan

  1. The year of his birth may be found by solving a conundrum proposed by himself, "I was x years of age in the year x2 (He was 43 in 1849). The problem is indeterminate, but it is made strictly determinate by the century of its utterance and the limit to a man's life. Those born in 1722 (1764–42), 1892 (1936–44) and 1980 (2025–45) are similarly privileged.
  2. The year of his birth may be found by solving a conundrum proposed by himself, "I was x years of age in the year x2 (He was 43 in 1849). The problem is indeterminate, but it is made strictly determinate by the century of its utterance and the limit to a man's life. Those born in 1722 (1764–42), 1892 (1936–44) and 1980 (2025–45) are similarly privileged.