I question a few of those also.
I found this at
http://www.hersheypa.com/press_room/pdfs/2010/life_1910.pdf , no vouching for it's accuracy:
What Was Life Like in 1910?
UNITED STATES ECONOMY
A first class stamp cost 2 cents.
A pound of sugar cost 5 cents.
A Hershey bar cost 5 cents.
A dozen eggs cost 34 cents.
The average annual household income was $750.
The federal government spent $.8 billion.
Unemployment was at 5.9 percent.
LIFE IN THE UNITED STATES
The population of the United States was 92,228,496.
New York was the most populated state. (According to the 1910 census, there were 9,113,614 residents in New York, compared to 7,665,111 in Pennsylvania.)
UNITED STATES HISTORY
On May 11, Glacier National Park was established in Montana by the United States Congress.
In just two days, a wildfire referred to as the “Great Fire of 1910” destroyed 3 million acres in northeast Washington, northern Idaho and western Montana. (why do people build in this fire areas?
)
Angel Island, in San Francisco Bay, became the United States Asian immigration center.
WORLD HISTORY
Japan invaded and seized Korea.
Mexican revolution was proclaimed on November 20.
FABULOUS FIRSTS AND FOUNDINGS
The Boy Scouts of America was incorporated.
Father’s Day was celebrated for the first time on June 19.
Thomas Edison demonstrated the first talking motion picture.
Photographers captured Halley’s Comet for the first time.
Theodore Roosevelt was the first United States president to ride in an airplane.
MEDICINE
The average life expectancy in the United States was 48.4 years for men and 51.8 years for women.
Mark Frank Woodbury of the United States Army introduced tincture of iodine as a wound disinfectant.
In car racing, Barney Oldfield set a new land speed record of
131.7 mph in Daytona Beach, Florida.
Harvard University was the NCAA football champion.