Throughout history, statues have been associated with cult images in many religious traditions, from Ancient Egypt, Ancient India, Ancient Greece, and Ancient Rome to the present. Egyptian statues showing kings as sphinxes have existed since the Old Kingdom, the oldest being for Djedefre (c. 2500 BC). The oldest statue of a striding pharaoh dates from the reign of Senwosret I (c. 1950 BC) and is the Egyptian Museum, Cairo. The Middle Kingdom of Egypt (starting around 2000 BC) witnessed the growth of block statues which then became the most popular form until the Ptolemaic period (c. 300 BC).