Analysis of 1910 TO 1919

I am the Boy Scouts  
Become Official.
   I am Charlie Chaplin film that
Makes you giggle.

I am the triangle shirtwaist  
Factory fire.
   I am Margaret Sanger the birth
Control supplier.

I am the Titanic sinks in
The ocean.
   I am the Spanish flu
In motion.

I am the Red Baron takes
To the sky.
   I am Rockefeller that
Billionaire guy.

I am the Coast Guard's first
Day on the job.
   I am the first crossword  
Puzzle to solve.

I am Tommy submachine
Gun in supply.
   I am Mata Hari the exotic
Dancing spy.

I am the first Indy
500 race.
   I am the Oreo cookie,
Can't wait to taste.

I am Mexico and Arizona
Become states.
   I am World War One starts
To take shape.

I am the National Hockey league
When it was formed.
   I am Daylight savings time when
It was born.

I am the international  
Telephone line.
   I am prohibition no alcohol  
Or wine.