1910 — Boy Scouts of America and the Camp Fire Girls are established.

Elsewhere that year:

• X ray is added to the curriculum at Palmer School of Chiropractic, 15 years after it was first discovered by Wilhelm C. Roentgen.
• George A. Hughes begins production of a practical electric cooking range.
• Georges Claude, a French chemist, invents the neon light.
• Father’s Day, started by Mrs. John B. Dodd, is celebrated for the first time in Spokane, Wash.
• The first president to pitch a ball to open the baseball season is William Howard Taft. He starts the game between Washington and Philadelphia in the American League.
• Congress require members of the House of Representatives to file reports of campaign contributions.