Denton True Young was born on this date in 1867, but the baseball world knows him best as Cy. More than a century after his final game, the man whose name is synonymous with pitching greatness still sits atop the leaderboards with 511 victories and 749 complete games.

Effa Manley knew how much a ballclub meant to its community, using her position as owner of the Newark Eagles to empower her players and advance civil rights causes. The first woman elected to the Hall of Fame was born #OTD in 1897.

Heeeere's Johnny!

Few players embraced the beginning of a new season like Tom Seaver, whose 16 Opening Day starts are a major league record. This summer in Cooperstown, we’ll share The Franchise’s collection with baseball fans from around the world. ow.ly/phs150YzaBg

0-0. The moment when our minds wander, our hearts race and anything is possible. Time begins on Opening Day. ow.ly/RS0W50Yz9Jz

Join us in wishing Hall of Famer and Braves legend Tom Glavine a happy 60th birthday!

George Sisler hit .340 over 15 big league seasons, and his 719 hits from 1920-22 are the most ever in a three-year span. The Hall of Fame first baseman was born #OTD in 1893.

You may have spotted @andybisanartist.bsky.social setting the scene in Houston during the World Baseball Classic. On a picture perfect day in Cooperstown, he donated his original work to the Museum and created two more masterpieces.

Months after his tragic passing, Roberto Clemente was elected to the Hall of Fame #OTD in 1973. The momentous day, clouded by sadness, made The Great One the first Latin American player enshrined in Cooperstown. ow.ly/135P50YwMR1

The story of Team Venezuela’s first World Baseball Classic championship will be told forever in Cooperstown! ow.ly/O3H450YvU8i THREAD ⤵️

Looking clean in green. Forty years ago today, the Phillies exchanged their customary red pinstripes for this #StPatricksDay inspired look.

We're live with Hall of Famer Mike Schmidt! Join on us Facebook: ow.ly/CFqR50Yvi1V

When Sophie Kurys retired, she had stolen more bases than any other professional baseball player – and she did it all wearing a skirt. #WomensHistoryMonth

Since it’s #Oscars night, fill in the blank... The best baseball movie of all time is ____________________.

They called him Pie because “Ratio of a Circle’s Circumference to its Diameter” Traynor was a mouthful. #PiDay

His joy filled up center field for 12 seasons in the Twin Cities while bringing two World Series titles to Minnesota. Twins legend Kirby Puckett was born #OTD in 1960.

Explore the Museum’s Women’s History curriculum with one of our School Resource Kits! Public middle schools can request a kit at no cost: ow.ly/rfzg50YsQzE

The lens of baseball history has adapted to screens of all sizes throughout the decades. The Museum is home to many artifacts – including a newly donated iPhone 17 Pro – that show how broadcast technology gets smaller, smarter and closer to the action. ow.ly/mQtu50Ysium

World power. 🇩🇴🇳🇱🇨🇼 #WorldBaseballClassic

Looking for high-quality baseball writing delivered to your doorstep? We’ve got you covered. Hall of Fame members receive a subscription to our bi-monthly magazine Memories and Dreams, and our first issue of the year spotlights the Class of 2026: baseballhall.org/join

Congratulations to Bill White, the 2026 recipient of the Buck O’Neil Lifetime Achievement Award! ow.ly/uNVQ50Yrs66

When Dick Allen’s 40-ounce bat connected squarely with a baseball, you could count on it leaving the yard in a hurry. The Hall of Famer, born #OTD in 1942, topped the 30-homer mark six times during one of the most pitching-dominated eras in big league history.

Help us wish @redsox.com legend Jim Rice a happy 73rd birthday! 🎉

Join us in wishing Class of 2026 inductee Jeff Kent a happy birthday! 🎉 He’ll have even more to celebrate this summer when his Hall of Fame friends welcome him to Cooperstown.

Willie Stargell won the 1979 National League MVP, the NLCS MVP and the World Series MVP – and that may not even have been his best season in the big leagues. The @pirates.com captain was born #OTD in 1940. 📸 Doug McWilliams

A one… a two… a three! The great Harry Caray was born on this date in 1914.

This is international baseball at the top of its game. Our new exhibit dedicated to the World Baseball Classic is now open in Cooperstown! ow.ly/RXZE50YmBWv

A plaque in Cooperstown calls for another in the Bronx. The Yankees will retire CC Sabathia's jersey and honor his No. 52 in Monument Park on Sept. 26.

As a four-time East-West All-Star with Newark, a Triple Crown winner in Mexico and a world champion for the New York Giants, Monte Irvin excelled wherever he played. The Hall of Fame outfielder was born #OTD in 1919.

Ron Santo was a Chicago legend through and through. The Hall of Fame third baseman, whose all-around play at the hot corner and advocacy for diabetes research inspired millions of fans, was born #OTD in 1940. 📸 Doug McWilliams

Jimmy Claxton appeared in just two games for the Oakland Oaks, but he left a lasting legacy as the first Black player to be featured on an American baseball card. ow.ly/42tY50Yl4Ji #NationalTradingCardDay #BlackHistoryMonth

We love Eddie Murray thiiiiiis much. Join us in wishing Steady Eddie a happy 70th birthday! 🎉

He was an eight-time NL batting champion, led the league in slugging percentage six times and stole 723 bases over 21 seasons. A member of the first Hall of Fame class in 1936, @pirates.com legend Honus Wagner was born #OTD in 1874.

Pitchers Mitch Harris and Chris Rowley, who both served on active duty before making their major league debuts, are our latest additions to the Hall of Fame Military Classic. Read more: ow.ly/HSFr50YkpUa Tickets: baseballhall.org/hofclassic

For 26 years, he was the picture of managerial excellence. Sparky Anderson, the famed Reds and Tigers skipper who captured three World Series titles and 2,194 career victories, was born on this day in 1934.

For Maz 🖤💛

We’ll miss you forever in Cooperstown, Maz.

Bill Mazeroski defined defensive play at second base for a decade, finishing his 17-year big league career as one of the best ever to play the position.

Happy birthday to Hall of Famer Alan Trammell, who turns 68 today. Anchoring the infield for 20 seasons in the Motor City, Tram took the Tigers back to the top in 1984 when he earned World Series MVP honors.

Bill Mazeroski’s helmet from that day – which marked the first time the World Series had ever ended on a home run – is part of the Hall of Fame’s permanent collection.

Game 7 of the World Series, bottom of the ninth, tie game – it’s the kind of opportunity every player dreams about. On Oct. 13, 1960, Bill Mazeroski made that dream come true for the @pirates.com.

It is with a heavy heart that we relay the news of the passing of legendary Pirates and National Baseball Hall of Famer, Bill Mazeroski. Maz was a 7-time All-Star who hit the greatest home run in baseball history. He was a beloved member of the Pirates family and he will be deeply missed.

The Hall of Fame remembers Class of 2001 inductee Bill Mazeroski, who passed away Friday at the age of 89. ow.ly/JC2r50Yjlzg

Among the 800 episodes of The Simpsons, this one is still our favorite. “Homer at the Bat,” starring future Hall of Famers Wade Boggs, Ken Griffey Jr. and Ozzie Smith, premiered #OTD in 1992. ow.ly/vcN150YiKyU

Recalled to serve with the Marines in the Korean War, Ted Williams crash-landed his fighter jet on a mission #OTD in 1953. His piloting skills saved his life — and less than six months later, he was back in the Red Sox lineup. ow.ly/av7T50Yi4Kj

His voice still rings out through the Pacific Northwest and in the hearts of Mariners fans everywhere. Dave Niehaus, the 2008 Frick Award winner who called 5,284 games in Seattle, was born #OTD in 1935.

There are diamonds in the rough, and then there’s Mariano Rivera. The Yankees signed the Panamanian prospect for $3,000 on this date in 1990, and he would begin rewriting the record books as baseball’s all-time saves leader. ow.ly/I47R50Yh0Y1

In honor of #ValentinesDay, tell us what you love the most about baseball.

The Negro Leagues produced some of the best baseball in the sport’s history, and with the help of future Hall of Famer Rube Foster, the Negro National League was founded #OTD in 1920. ow.ly/Ekb850Yf522

There was only one Satchel Paige. #BlackHistoryMonth