Who was President of the United States from 1881-1885？ What government position did John Quincy Adams hold before he was president？ The Wolfram US Presidents Reference App can answer these questions and more. Find presidents listed by name or date of term， and compare side-by-side information about any two presidents.
- Learn the place and date of birth or death for each president
- Determine who was president during a specific time period in history
- See leadership positions held by presidents throughout their lifetimes
- View an image of each president
The Wolfram US Presidents Reference App is powered by the Wolfram|Alpha computational knowledge engine and is created by Wolfram Research， makers of Mathematica—the world’s leading software system for mathematical research and education.
The Wolfram US Presidents Reference App draws on the computational power of Wolfram|Alpha’s supercomputers over a 2G， 3G， 4G， or Wi-Fi connection.