National Day Calendar
National Day Calendar - National Corn on the Cob Day
Confirms June 11 and notes that the origin of the food holiday is still being researched.
Site Notes
A quiet place for receipts.
The site can be playful, but the factual claims should have roots. This is the working source shelf for holiday dates, maize history, sweet corn facts, and recipe context.
Holiday Date & Observance
Useful for confirming the public June 11 observance and being honest about the thin origin trail.
timeanddate.com
Corn on the Cob Day
Confirms annual June 11 observance and gives a lightweight description of the dish.
Checkiday
Corn on the Cob Day
Confirms annual June 11 observance and alternate naming such as National Elote Day.
Days Of The Year
National Corn on the Cob Day
Useful as a popular holiday-calendar reference, with claims to verify against stronger sources before reuse.
Maize History & Domestication
Best sources for the eventual history page: teosinte, Mexico, early cultivation, and the complicated spread of maize.
Smithsonian Institution
Scientists Overhaul Corn Domestication Story With Multidisciplinary Analysis
Explains the revised picture of maize domestication, including the role of teosinte and movement from Mexico into South America.
Smithsonian Institution
Ancient DNA Continues To Rewrite Corn's 9,000-Year Society-Shaping History
Supports the broader 9,000-year timeline and the idea that domestication and crop improvement were not a simple one-way story.
Smithsonian Institution
New Research Reveals the Earliest Evidence for Corn in the New World
Provides early archaeological evidence for maize domestication in Mexico around 8,700 years ago.
Sweet Corn, Cooking & Storage
Practical references for recipes, picking, storage, seasonality, and the biology behind the best cobs.
USDA SNAP-Ed Seasonal Produce Guide
Corn
Supports summer seasonality, basic storage guidance, preparation methods, and the even-row fun fact.
Purdue Extension FoodLink
Sweet Corn
Supports fact-card claims about average kernels, rows, and one silk per kernel.
University of New Hampshire Extension
Growing Sweet Corn
Details sweet corn types, pollination, growing conditions, harvest timing, and how quickly sweetness declines after picking.
University of Illinois Extension
Corn
Useful for sweet corn varieties, harvest signs, storage guidance, and the classic urgency of eating corn soon after harvest.
University of Illinois Extension
Corn fields add to muggy, humid Midwestern temps
Supports the corn-sweat fact-card claim about an acre of corn adding 3,000 to 4,000 gallons of water to the atmosphere each day.
Purdue Agriculture
What’s under the shell of this popular snack?
Supports the popcorn fact-card claim about moisture, pressure, the pericarp, and why kernels pop.
USDA Agricultural Marketing Service
Sweet Corn for Processing Grades and Standards
Reference for USDA grading language around freshness, kernel maturity, and damage standards.
Botany & Everyday Uses
References for what maize is, how old it is, and how far corn reaches beyond the cob.
UC Davis Ross-Ibarra Lab
Maize History
Supports fact-card claims that maize is a grass and was domesticated around 9,000 years ago from teosinte in southwest Mexico.
National Library of Medicine MeSH Browser
Zea mays
Supports botanical framing of corn as Zea mays, a grass grown for edible grain.
Iowa Corn
Corn: It’s Everything
Supports the fact-card claim that corn is used in more than 4,000 everyday products.
U.S. Corn Context
Helpful background for facts pages and for keeping sweet corn celebration separate from commodity corn scale.
USDA Economic Research Service
Feed Grains Sector at a Glance
Supports U.S. corn production context, major uses, Heartland concentration, and feed/fuel/industrial framing.