Simplify the following text for a Grade 8 native English-speaking person.
Original: On 11 February 2011 , the Vice President of Egypt Omar Suleiman announced that Mubarak had stepped down as President of Egypt as a result of the popular protests starting on January 25 .
Simplified: On February 11 , Vice President Omar Suleiman made an announcement . He said that Mubarak agreed to leave office .