Every so often, the calendar plays a trick on aviation history — and this week, we're letting it. The third week of July centers on a single date, July 15th, which somehow hosted three of the biggest moments in the entire story of flight, in three completely different decades.

We start on July 15th, 1916, in Seattle, where a timber merchant named William Boeing filed paperwork to incorporate a small company building seaplanes out of a converted boathouse. Nothing about that afternoon suggested it would eventually lead to the 747. It just did.

Then July 15th, 1933 — seventeen years later, same date — when a one-eyed Oklahoma pilot named Wiley Post climbed into a Lockheed Vega before dawn at Floyd Bennett Field to attempt something no one had ever done: fly solo around the entire world. He used an early autopilot to grab short naps over Siberia. He landed seven days later having completed the journey more than twenty hours faster than his own previous record, set with a navigator two years before.

And finally, July 15th, 1954 — twenty-one years after that, same date again — when a brown-and-yellow jet prototype called the Dash Eighty lifted off from Boeing Field in Seattle, carrying the company's entire financial future on its wings. A year later, a test pilot would barrel-roll that same aircraft twice over Lake Washington in front of the executives who needed convincing, tell them he had simply been "selling airplanes" — and the jet age for ordinary travelers began.

Three stories. One date. Thirty-eight years apart, and somehow all connected by the same square on the calendar.

Windows of Flight is brought to you by the Border Series — aviation thriller novels by host Eric Ristau. Old bold pilots, vintage aircraft, and plots ripped straight from today's headlines. Find the Border Series wherever books are sold, and learn more at www.ericristau.com.

The history of aviation is full of doors quietly opening — moments that didn't make front-page headlines at the time but changed everything that came after. The second week of July gives us three of them, spanning exactly forty years.

We start on July 8th, 1908, in Milan, Italy, where a French sculptor named Thérèse Peltier watched an exhibition flight and simply asked if she could go up. She became the first woman in recorded history to leave the ground in a powered airplane — thirty-four years old, a passenger for less than a minute, in a Voisin biplane over an Italian airfield. Three years before Harriet Quimby earned the first American woman's pilot license. Thirteen years before Bessie Coleman earned hers in France. The door had already been opened.

Then July 10th, 1938, when Howard Hughes took off from Floyd Bennett Field with a crew of four, determined to fly around the world faster than anyone in history. Four days later, he landed back in New York having covered 14,791 miles and bested Wiley Post's existing record by nearly four full days — through a flight of genuine engineering rigor that pointed directly toward the future of transoceanic aviation.

And finally, July 14th, 1948 — exactly ten years after Hughes landed — when six Royal Air Force Vampire jet fighters completed the first Atlantic crossing by jet aircraft, staging their way from England through Scotland, Iceland, and Greenland to Labrador. It happened quietly, within a military context, with three Mosquito navigators flying alongside because the jets lacked adequate instruments for overwater flight. But it proved the ocean could be crossed by jet. Everything that followed was built on that proof.

Forty years. Three doors. The whole shape of modern aviation on the other side of them.

Windows of Flight is brought to you by the Border Series — aviation thriller novels by host Eric Ristau. Old bold pilots, vintage aircraft, and plots ripped straight from today's headlines. Find the Border Series wherever books are sold, and learn more at www.ericristau.com.

The history of aviation is written in moments of brilliant achievement and sudden silence. The first week of July gives us both — two milestones on Independence Day twenty years apart, and one disappearance that the world has never stopped trying to explain.

We start on July 4th, 1908, in a grape-growing town in upstate New York, where a motorcycle racer named Glenn Curtiss flew a fragile biplane called the June Bug 1,550 meters in front of witnesses who certified every foot of it. The Scientific American Trophy. The fury of the Wright brothers. And the beginning of a career that would shape American military aviation for the next decade.

Then July 4th, 1927 — nineteen years later to the day — when a sleek wooden aircraft called the Lockheed Vega lifted off from Burbank, California for the first time. No struts, no bracing wires, smooth as an egg and fifty miles per hour faster than anything else carrying passengers. Over the next decade, that aircraft and its sisters would carry Wiley Post around the world, carry Hubert Wilkins over the poles, and carry Amelia Earhart solo across the Atlantic in 1932. The Vega didn't just set records. It made records possible.

And finally, July 2nd, 1937 — when Earhart and her navigator Fred Noonan, flying a newer Lockheed design on an around-the-world attempt, made their last radio transmissions to a Coast Guard cutter that could hear them but couldn't respond. The search covered 250,000 square miles of Pacific Ocean and found nothing. The ocean has kept its secret for nearly ninety years.

Two Independence Days. One disappearance. All of aviation between them.

Windows of Flight is brought to you by the Border Series — aviation thriller novels by host Eric Ristau. Old bold pilots, vintage aircraft, and plots ripped straight from today's headlines. Find the Border Series wherever books are sold, and learn more at www.ericristau.com.