I have posted President Obama's November 4, 2008, victory speech because he is considered to be one of the greatest orators of the 21st century, a skill that was, no doubt, instrumental in his election.
On August 28, 1963, as he delivered his "I Have a Dream" speech, Martin Luther King, Jr., could not have imagined that just 45 years later, an African-American would be elected President of the United States, for text of "I Have a Dream" suggests that true equality would be a long and arduous road.
There are still racial difficulties, of course, but President Obama's election has been a stunning step forward for all minorities in the U.S.
The full text of President Obama's victory speech and Reverend King's "I Have a Dream" speech can be found here.
(Disclaimer: 44 is my website, and it's a bit biased.)
Also, a YouTube video of "I Have a Dream" has been embedded in this non-profit site, just in case you can not make the 12/22 class. Unfortunately, the video can be difficult to load.