Before the late twentieth century the oldest existing copy of the "Analects" known to scholars was found in the "Stone Classics of the Xinping Era", a copy of the Confucian classics written in stone in the old Eastern Han dynasty capital of Luoyang around 175 AD. Archaeologists have since discovered two handwritten copies of the "Analects" that were written around 50 BC, during the Western Han dynasty. They are known as the "Dingzhou "Analects"", and the "Pyongyang "Analects"", after the location of the tombs in which they were found. The Dingzhou "Analects" was discovered in 1973, but no transcription of its contents was published until 1997. The Pyongyang "Analects" was discovered in 1992. Academic access to the Pyongyang "Analects" has been highly restricted, and no academic study on it was published until 2009.