North Texas Regional Interurban railway begins operating.
Arlington College closes and Carlisle Military Academy opens in its place. The school accepts students ages 10 to 18, and the initial enrollment is four. Tuition for the year was $245 (later raised to $300), plus an additional $30.05 for the uniform.
Texas Legislative Act created the Arlington ISD. Local schools are taken over by the City of Arlington from Carlisle Military Academy.
Berachah Industrial Home for the Redemption of Erring Girls opens.
Texas & Pacific Railroad Depot is built.
W. A. Thornton Home is built at 719 W. Abram, the first home in Arlington with gas lights.
The Commercial Club funds construction of a new mineral well where water flows out the mouths of lions' heads mounted on a four-sided structure.
Masonic Home for Aged Masons opens, now known as Texas Masonic Retirement Center.
Carlisle Military Academy graduates its last four students before closing. Arlington Training School opens on the campus soon after with an initial enrollment of 32 students. Over the next three years, the school adds a school newspaper, The Reveille; literary societies; forensic clubs; drama groups; and tennis teams for both women and men.
Historic Fielder House at 1616 W. Abram is built by prominent banker James Park Fielder.
One of Arlington’s most influential women was Carrie
Rogers. As a civic leader and entrepreneur,
Carrie was active in the community, while seeking
change and betterment. In 1914, she became
Arlington’s city marshal and was believed to be the first
woman in Texas to hold that position.
South Center Street Historic District is planned out by William Rose, housing the city's earliest merchants and craftsmen.
Zachary Slaughter opens the city's first car dealership.
After years of lobbying by Arlington leaders, officials and community members, the 35th Texas Legislature creates a new junior college—Grubbs Vocational College—on the site as a branch campus of what is now called Texas A&M University. Enrollment is 66 in the first year, 192 in the second, and 808 by the 1922-23 school year.
Arlington Training Academy closes due to financial and legal issues. John B. Dodson, former superintendent of schools in McKinney and Oak Cliff and president of Oak Cliff College, makes a last attempt to offer a private primary or military school on the site with Arlington Military Academy. It is open only one year.
Home rule City Charter adopted by City Council.
The highway from Dallas to Arlington is widened and carries interstate traffic through the center of the city.
Arlington High School built on Cooper St. and Abram St, the first official high school in AISD.
The first Arlington Public Library opened its doors on March 23, 1923, starting with 500 books in the Farmer's National Bank, marking the beginning of over 100 years of service to the community, growing from that modest start to its current large system.
The Rotary Club of Arlington (Texas) held its Club Organization Meeting on May 29, 1923, with the official Charter presented on June 11, 1923, making it Arlington's first Rotary Club and establishing its legacy of community leadership.
Arlington Cemetery Association is chartered, taking care of Arlington Cemetery.
With support from the Rotary Club of Arlington, Meadowbrook Park opens as the first park in Arlington, the roots planted for the City of Arlington's Parks, Recreation & Culture Department.
Eastern Star Home is built to provide a home for aged and infirm members of the Eastern Star Organization in Texas at 1201 E. Division.
Grubbs Vocational College changes its name to North Texas Junior Agricultural College (NTAC)—the idea is that removing “vocational” will help the school shed its image as a private institution.