(Although its historical enigmas are apparently insoluble讓步狀語從句),( there is謂語) abundant testimony主 to the vast influence定語 exercised by the book狀語 (since the earliest times and in surprisingly varied social contexts狀語).
譯:
雖然它的歷史之謎顯然是無法解開的,但有大量的證據表明,這本書自最早的時代以來,在驚人的不同的社會背景下發揮了巨大的影響。
(譯文:來自有道)