the first third of the century 意味

• その世紀の初めの 3 分の 1

• during the first third of the century:    その世紀｛せいき｝の初めの3分の1のうちに
• third quarter of the century:    その世紀｛せいき｝の第3四半期｛しはんき｝までIn the most important event of the third quarter of the century, Otto von Bismarck unified Germany.
• as far as the first century:    はるか昔の一世紀