Q:Given the following passage  "On December 20, 2005, the United States Court of Appeals for the Sixth Circuit ruled in the case of ACLU v. Mercer County that the continued display of the Ten Commandments as part of a larger display on American legal traditions in a Kentucky courthouse was allowed, because the purpose of the display (educating the public on American legal traditions) was secular in nature. In ruling on the Mount Soledad cross controversy on May 3, 2006, however, a federal judge ruled that the cross on public property on Mount Soledad must be removed.",  answer the following question. Note that the answer is present within the text.  Question: What happened in the 7th year of the 2000s?
A:
ruling on the Mount Soledad cross controversy