Answer:
↣ When Martin Luther King, Jr., gave his famous "I Have a Dream" speech on August 28, 1963, he opened with an allusion to Lincoln's Gettysburg Address.
Step-by-step explanation:
An allusion is a reference derived from any kind of type of media such as movies, trends, books, songs, speeches, etc.
. . • ☆ . ° . • °: . * ₊ ° . ☆
I hope this helps!
peachtea ^-^