Many doctors believe this decline in hormone levels triggers the symptoms of PMS. Changes in brain chemicals or deficiencies in certain vitamins and minerals may also play a role. Too many salty foods, alcohol, or caffeine may make symptoms worse as well.
There have been countless flights made since the invention of the airplane by the Wright Brothers in 1903. It should come as no surprise that the first commercial flight in history occurred in the United States. In fact, it occurred on January 1, 1914, three years before the United States entered the first World War.
Worldâs First Commercial Airline Posted on December 21, 2017 by Steve Silverman The idea for the first heavier-than-air commercial airline came from the mind of Percival Elliott Fansler. Fansler was the sales manager for the Jacksonville branch of a tractor company when he came across an article describing a 1912 long-distance flight from Omaha to New Orleans.