The Daily Question
Which newly elected Pope was the first to give his first blessing by radio?
1. Pope Pius X
2. Pope Pius XI
3. Pope Pius XII
4. Pope Paul VI
Your answer was: Pope Pius XII
You are correct!!
Answer: Pope Pius XII was the first Pope to give his first blessing by radio.

Coronation of Pope Pius XII
Scott # 68-71 (1939)
Reference
• William Wonneberger, "The Vatican Postage Stamps"
National Philatelic Museum Volume 7 Number 1 Page 71 (This publication was produced for the 1954 Marian Year Philatelic Exhibition held in Philadelphia September 22 - November 5, 1954.)