Who's often considered the father of algebra?

Al-Khwarizmi

Who provides the voice of Emmet Brickowski in "The LEGO Movie"? What year was the song "All I Want for Christmas is You" by Mariah Carey first released? Who hosts the counterfeit party that Monica and Phoebe sneak into to stalk a famous soap star? Who formed the first women's rights convention at Seneca Falls with Elizabeth Cady Stanton? What type of symmetry occurs when a shape remains unchanged after spinning it by a certain angle?