Bill Petro: writer, historian, and technologist
Writes about HistoryPopular Culture, Tech Trends, and Travel.
Contributing writer to the books Invitation to Church History, Vol 1 & 2 and
Product Management to Product Leadership: The Advanced Use Cases

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Science of the Strawberry Moon

June 21, 2024

Science of the Strawberry Moon Strawberries emerge in May and ripen in June, giving their name to June’s Full Moon. This Strawberry Moon, which often coincides with the Summer Solstice, will reach peak illumination in the United States on Friday, June 21, at 9:08 p.m., E.T. It also goes by other names: Green Corn Moon,…

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Science of the Summer Solstice: Start of Summer

June 19, 2024

SCIENCE OF THE SUMMER SOLSTICE Solstice comes from the Latin word solstitium, meaning “Sun, standing still.” The Summer Solstice occurs on June 20 at 20:51 UTC, Coordinated Universal Time, Zulu Time, or roughly Greenwich Mean Time. Greenwich, England, is the prime meridian — the zero point for longitude lines. Why is UTC the abbreviation for Coordinated…

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History of Juneteenth: and the Emancipation Proclamation

June 18, 2024

HISTORY OF JUNETEENTH: and the Emancipation Proclamation June Nineteenth, or Juneteenth, historically marked 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…

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History of Father’s Day: the Beginning

June 14, 2024

HISTORY OF FATHER’S DAY: the Beginning [NOTE: I wrote a more extended and serious version of this article for CBS.com several years ago. It has been published on their network of sites for major cities nationwide. You can find that article here.]   Origin of Father’s Day The celebration of Father’s Day goes back to…

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History of Flag Day

June 13, 2024

HISTORY OF FLAG DAY June 14 is Flag Day in the United States. 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 War. Related…

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History of Shavuot: The Feast of Weeks

June 11, 2024

HISTORY OF SHAVUOT Tonight at sunset, June 11, begins the Jewish holiday Shavuot, also known as the Feast of Weeks, and continues until sundown on June 13. The holiday, also known in Greek as Pentecost, is on the sixth day of the Hebrew lunarsolar calendar month of Sivan, which means that in the Gregorian solar…

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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, James Bond, 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.

 

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