Turkey became the star of Thanksgiving mostly because it was practical for big family feasts and later got locked in by 19th‑century holiday culture, not just because of the 1621 Pilgrim meal. Over time, writers, magazines, and political leaders helped cement the image of a roast turkey as the classic Thanksgiving centerpiece in the American imagination.

Quick Scoop

Not really about the “first Thanksgiving”

  • Surviving records from the 1621 harvest feast mention deer and some kind of fowl, but they do not clearly prove turkey was the main dish.
  • The strong link between turkey and Thanksgiving really developed much later, in the 1800s, when people romanticized the Pilgrim story and assumed turkey had been central all along.

Why turkey made sense for families

  • Turkeys were plentiful in early America; one expert estimate suggests tens of millions of wild turkeys at the time of European contact, making them an obvious feast choice.
  • On farms, cows gave milk and hens laid eggs, but turkeys were raised mainly for meat, so they were easier to slaughter for a special occasion without losing ongoing resources.
  • A single turkey is large enough to feed a whole family or gathering, which made it a practical “celebration bird” for a shared holiday meal.

The 1800s “marketing push”

  • In the mid‑19th century, writer and editor Sarah Josepha Hale used her hugely popular magazine and a bestselling novel to describe an ideal Thanksgiving dinner centered on roast turkey.
  • She campaigned for a national Thanksgiving holiday for decades, and when Abraham Lincoln finally proclaimed Thanksgiving a national holiday in 1863, the turkey‑centered version she promoted spread as the cultural norm.

A perfect centerpiece image

  • A roast turkey looks impressive on the table, and its size fits the image of a shared, abundant family feast, which helped it become the visual symbol of Thanksgiving.
  • As cookbooks, magazines, and later TV and advertising repeated that image, “Thanksgiving = turkey” turned into tradition, even though plenty of families now mix in ham, vegetarian mains, and regional dishes.

TL;DR: We have turkey on Thanksgiving because it was abundant, big enough to feed a crowd, and didn’t compete with milk or egg production, and 19th‑century writers and leaders turned that practical choice into an iconic holiday tradition.

Information gathered from public forums or data available on the internet and portrayed here.