Bill Petro, author and technologist.
Writes about HistoryPopular Culture, and Tech Trends.
Contributing writer to the books Product Management to Product Leadership: The Advanced Use Cases
and Invitation to Church History

History of Juneteenth: and the Emancipation Proclamation

June 18, 2021

HISTORY OF JUNETEENTH June Nineteenth, or Juneteenth, marks the celebration of the emancipation of African-American slaves in Texas in 1865. While the annual celebration started in Texas the following year in 1866 — and became an official Texas state holiday there in 1980 — this formerly obscure holiday is now observed across the United States…

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History of Flag Day

June 14, 2021

HISTORY OF FLAG DAY June 14 is the day the United States celebrates Flag Day. While it may not be as widely celebrated as other American holidays, it is one of the oldest. It was resolved by the Second Continental Congress in 1777, even before the conclusion of the American War of Independence, the Revolutionary…

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History of D-Day: 77 Years Ago

June 4, 2021

HISTORY OF D-DAY Why has D-Day captured the imagination of American consciousness for three-quarters of a century? On Twitter, the hashtag is #DDay77 Seventy-seven years ago, on June 6, 1944, the Allies launched an offensive on the Normandy coast of France to liberate continental Europe from the Nazi German occupation. D-Day was the largest invasion by…

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History of June

June 1, 2021

HISTORY OF JUNE June represents the halfway point of the year, being the sixth of the twelve months of both the Gregorian calendar — which we use currently in the West — and also the earlier Julian calendar, named for Julius Caesar, the namesake of July. Where do we get the name for June?  …

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History of Memorial Day: Which War?

May 27, 2021

HISTORY OF MEMORIAL DAY: WHICH WAR? Memorial Day was not universally recognized as a shared American Holiday until after World War I. But that’s not how it started in the United States. When did it begin?   Civil War and Memorial Day Following the American Civil War or the “War Between the States,” as it…

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History of the Holidays

What is the history behind the holidays we celebrate, both sacred and secular? Many of the sacred holidays in our American “Judeo-Christian” heritage have secular associations, while many of the seemingly secular holidays actually have religious roots. This is the back story behind our popular holidays.

Popular Culture

Featuring reviews of moviesconcerts, and theatre. I write movie reviews as soon as I see them, which is usually the day they come out (or before). Reviews of Star Wars and Star Trek movies, Lord of the Rings, Hobbit, and Harry Potter films, rock and jazz concerts and theatre reviews.

Tech Trends

Articles about current and future technologies and their possible implications. Discussions about Apple iPhone and Apple Watch and innovative technologies from other companies: social media, payment systems, personal data backup, etc.