What did Muhammad rededicate to worship of one true god?

Muhammad rededicated the Kaaba, a sacred site in Mecca, to the worship of one true God, Allah. Before his time, the Kaaba contained numerous idols representing various deities. Upon his conquest of Mecca in 630 CE, Muhammad removed these idols and established the Kaaba as the central place of worship for Islam, emphasizing monotheism and the oneness of God. This act symbolized the purification of the site and the restoration of its original purpose as a house of worship dedicated solely to Allah.