The Ad Man's Holiday: How a Slow Sales Season Got Turned Into a Sacred Tradition

Every February, Americans spend somewhere around $24 billion on Valentine's Day. Candy, flowers, jewelry, dinner reservations, greeting cards. The whole apparatus of romance kicks into gear with a kind of cultural obligation that feels, if you stop to examine it, slightly mysterious. Why this day? Why these gifts? Why does skipping it feel like a personal failure?

The answer, in most cases, is not ancient tradition. It's a sales meeting.

Some of the most emotionally resonant customs in American life were not passed down through generations of meaningful ritual. They were engineered — deliberately, strategically, and profitably — by companies looking for a reason for you to buy something. And they worked so well that we stopped being able to tell the difference between a tradition and an advertisement.

The Greeting Card That Started an Industry

Esther Howland didn't invent Valentine's Day, but she invented the American version of it.

In 1847, Howland was a student in Worcester, Massachusetts when she received an English Valentine's card — an elaborate, lace-trimmed, hand-assembled affair that was fashionable in Britain. She thought she could make something similar and sell it locally. She ordered supplies from New York, made some samples, and sent her brother out to take orders.

He came back with $5,000 worth of business. In 1847 dollars.

Howland built a small assembly line in her family home, eventually growing her Valentine business to $100,000 a year before selling it in 1881 to the George C. Whitney Company. What she had recognized — and what the greeting card industry would spend the next century perfecting — was that there was money in giving people a formalized, purchasable way to express emotion. You didn't have to write the words yourself. You just had to buy the card.

By the early twentieth century, Hallmark (founded in 1910) had turned this insight into a corporate strategy. The company didn't just sell cards for existing holidays. It began actively promoting occasions that would create demand for new cards. Mother's Day, which became a federal holiday in 1914, was one of the first to benefit from aggressive greeting card promotion. Father's Day followed. Grandparents Day. Sweetest Day. Each one a genuine sentiment wrapped around a commercial opportunity.

The Diamond That Was Never Traditional

If you think the engagement ring has deep historical roots, you're not entirely wrong — but the specific tradition of a diamond engagement ring is almost entirely a product of one of the most successful advertising campaigns in American history.

In 1938, De Beers, the South African diamond company, was facing a problem. Diamond sales had collapsed during the Depression, and the company needed to rebuild demand in the American market. They hired the Philadelphia advertising agency N.W. Ayer & Son and gave them an unusual brief: make diamonds feel necessary.

The campaign that followed was extraordinary in its ambition. N.W. Ayer placed diamonds in movies, loaned them to celebrities, got them photographed on the hands of socialites, and worked to establish the idea that a diamond ring was the only appropriate symbol of a serious engagement. In 1947, copywriter Frances Gerety wrote the line that would define the campaign: A Diamond Is Forever.

In 1939, before the campaign began, only about 10 percent of engagement rings in the U.S. contained diamonds. By 1990, that number was over 80 percent. The tradition felt ancient. It wasn't. It was fifty years old and had been manufactured by a marketing department.

How the Christmas Sweater Became Mandatory

Christmas itself is a holiday with genuine historical and religious roots, but many of its most specific American customs are surprisingly recent inventions.

The image of Santa Claus as a large, jolly, red-suited man with a white beard was not standardized until the 1930s, when Coca-Cola commissioned illustrator Haddon Sundblom to create a series of ads featuring Santa drinking Coke during his Christmas Eve rounds. Sundblom's Santa — warm, rotund, dressed in Coca-Cola red — became the template for virtually every Santa image that followed. The company didn't invent Santa, but they largely invented the version of him that lives in the American imagination.

The ugly Christmas sweater, now a staple of office parties and family gatherings, didn't become an ironic tradition until the mid-2000s, when a handful of parties in Canada and the U.S. began celebrating the kitschiest sweaters people could find. Retailers noticed, started producing intentionally ugly sweaters, and within a decade had created a market worth hundreds of millions of dollars annually. A joke became a tradition became a product category.

Why We Fall for It Every Time

The uncomfortable truth that advertising historians and cultural anthropologists keep arriving at is this: it doesn't really matter whether a tradition was invented by a greeting card company or passed down from the medieval church. Once a tradition is practiced consistently, across enough families and enough years, it becomes real. It accumulates emotional weight. It starts to feel like it was always there.

Psychologists call this the mere exposure effect — the more familiar something is, the more we trust it, value it, and feel its absence when it's gone. Marketers understood this intuitively long before the research confirmed it. If you can get people to do something for three Februaries in a row, you've got them for life.

The candy hearts, the diamond rings, the Santa in the red suit — none of them are frauds, exactly. They're just beginnings that got forgotten. The tradition outlived its origin story so completely that the origin story stopped mattering.

Until you look it up.

And then you can't quite look at the Valentine's card aisle the same way again.