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Naser al-Din Shah's life is chiefly documented through his extensive personal memoirs, also known as the "Naser al-Din Shah Qajar Diaries". These memoirs span several decades and provide a unique glimpse into the daily life, thoughts, and experiences of the Shah. They offer insights into his personal life, political decisions, social interactions, encounters with foreign dignitaries, and observations of the changing landscape of Iran during his reign.