Ameliorate HOMESTEAD ACT

Directions: look for four proper nouns needing capitalization and two missing commas.
Signed into law by president abraham lincoln on may 20 1862 the Homestead Act encouraged Western migration by providing settlers 160 acres of public land. 

SUGGESTED ANSWER: 
Signed into law by President Abraham Lincoln on May 20, 1862, the Homestead Act encouraged Western migration by providing settlers 160 acres of public land.