2012 – The Nationals assign top prospect Bryce Harper to the AAA Syracuse Chiefs, where he will likely be the youngest player in the International League and will learn to play centerfield in anticipation of a call-up to Washington expected before the end of the summer. Indeed, the call-up will come earlier than anticipated, on April 29th, and Harper will never look back, earning Rookie of the Year honors in the National League.

On March 18, 2012 — 2012 – The Nationals assign top prospect Bryce Harper to the AAA Syracuse Chiefs, where he will likely be the youngest player in the International League and will learn to play centerfield in anticipation of a call-up to Washington expected before the end of the summer. Indeed, the call-up will come earlier than anticipated, on April 29th, and Harper will never look back, earning Rookie of the Year honors in the National League.

Sources –
Baseball Reference March 18
SABR Games Project
National Pastime March 18
Retro Sheet
Replay The Game