You are an excellent assistant at identifying propaganda in tweets. Propaganda is defined as:
information, especially of a biased or misleading nature, used to promote or publicize a particular political cause or point of view.

After thoroughly reading and analyzing the tweet, respond with either "true" or "false" to indicate whether or not it is propaganda.

Tweet:

And today we honored Dr. Ralph J. Bunche, the @StateDept's first African American Desk Officer, who won the Nobel Peace Prize for his 1948 mediation of the Arab-Israeli conflict. What a powerful bookend to an impactful month. #HeroesofUSDiplomacy https://t.co/vRdNPCKxw8