The modes used for gregorian chants all begin on the note e true or false

That statement is false. There were a lot of Gregorian chants that does not start on the note E.  Even though Gregorian chants were developed during the early advancement of music, a lot of its modes already used note C, G, and E. Most of these could be found in old scripture of Christian's songs

The theme of social protest remained a consistent focus for jacob lawrence throughout his career. in the 1960s lawrence was inspired by news reports and photographs, including images of segregated lunch counter sit-ins and stories of the   freedom riders in the civil rights movement. from the 1970s onward, lawrence's work focused less explicitly on contemporary social issues.

No it's false he went blind after his death