1869年

03月15日 -- 世界第一支職業棒球隊辛辛那提紅長襪隊成立。
May 4 - The Cincinnati Red Stockings debut as the sport's first openly all-professional team, defeating the Great Westerns 45-9.
06月08日 -- 尼加拉瓜以209：10擊敗哥倫比亞^[1]。
June 15–17 - As part of their Eastern tour the Red Stockings defeat the Mutual of New York, Atlantic of Brooklyn, and Eckford of Brooklyn clubs 4-2, 32-10, and 34-5 respectively.
July 3 - The Eckford of Brooklyn club defeats the defending champion Mutual of New York club for the second time this season by a score of 31-5. This puts the championship flag in the possession of the Eckfords under the current rules.
August 16 - The Red Stockings win over the visiting Eckford club 45-18 at their own Union Grounds.
October 12 - The Chicago Base-Ball Association is founded. The association exists today as the Chicago Cubs.
November 5 - The Red Stockings complete an undefeated season with their 60th victory in as many contests, defeating the visiting Mutual Green Stockings of New York 17-8 before 7,000 spectators.
November 8 - For the second time since the Eckfords won the flag, they are defeated by the Atlantic of Brooklyn club. This gives the Atlantics the championship for the year by a 15-12 score.

備註

^ Schott, Arthur (2004-09). "A Wild and Wacky Score of a 19th Century Game: 209-10", Bleacher Creature. Retrieved on 2007-08-05.