The raw data behind the story "Sitting Presidents Give Way More Commencement Speeches Than They Used To" https://fivethirtyeight.com/features/sitting-presidents-give-way-more-commencement-speeches-than-they-used-to/.
pres_commencement
A data frame with 154 rows representing speeches and 8 variables:
Number of president (33 is Harry Truman, the 33rd president; 44 is Barack Obama, the 44th president)
Name of president
Description of commencement speech
Date speech was delivered
City where speech was delivered
State where speech was delivered
Name of building in which speech was delivered
Room in which speech was delivered