FC Rapid Bucuresti

1923–32: Beginnings

On 25 June 1923, in a classroom of the primary school from the Grivița neighborhood, Bucharest, the employees of the Grivița workshops created Asociația Culturală și Sportivă CFR ("CFR Cultural and Sports Association"). Teofil Copaci was chosen as the president of the association, while Grigore Grigoriu became the first captain of the team. The squad was formed in September, following the merger of the Ateliere and Excelsior teams. The first equipment was made out of burgundy fabric in the house of Grigoriu.

On 28 October 1923, the team played its first game against Unirea Timișoara, which it lost 4–8. The second match, played over ten days, was against Gloria Arad, and was lost 1–2. Until 1932 CFR played in the Bucharest Championship, not qualifying in the final tournament of the national league. During this period, the leaders of the team were: Teofil Copaci, Grigore Grigoriu, and Bozie Codreanu; other players included Stănică, Tudor, Molnar, Ștefănescu, Foran, Leoveanu, Constantinescu, Fetzko, Georgescu, Albert, Block, Filip, Itu I, Itu II, Pîrvulescu, Cichi, Schileriu, Svetcovschi, Oros, Ujlaki, Pop, Dobrescu I, Kelemen, Vlaiculescu, Ispas, Vintilescu, and Petrovici.

1932–45: The golden years

The club entered the Divizia A at the start of the 1932–33 season, after several years of competing for the regional championship of Bucharest. During the pre-war years, Rapid was one of Romania's top teams, regularly winning the cup, but never the championship, although they came close. Once Rapid lost the title because of a player's candor. One of Rapid's players touched the ball with his hand in the penalty area during a decisive match against Venus București, when Rapid needed a win to finish first in the league. At first, the referee didn't see it, but when he heard the audience protesting asked the player if he had touched the ball with his hand. The player admitted that he had.

Venus converted the penalty kick and managed a 1–1 draw to finish first in the league, instead of "the Railwaymen". The team's final season's standings in the Divizia A were: 1932–33 – 2nd (Seria I), 1933–34 – 4th (Seria I), 1934–35 – 10th, 1935–36 – 7th, 1936–37 – 2nd, 1937–38 – 1st (Seria I) (with the team losing the national championship final against Ripensia Timișoara 0–2), 1938–39 – 6th, 1939–40 – 2nd, and 1940–41 – 2nd.

In this period, the club's most successful time in this competition, Rapid won seven Romanian Cups: 1934–35, 1936–37, 1937–38, 1938–39, 1939–40, 1940–41, 1941–42, six of them won in consecutive years. The players in this winning effort included Roșculeț, Ujlaki, Vintilă, Wetzer II, Rășinaru, Cuedan, Barbu II, Rădulescu, Bogdan, Auer, Moldoveanu, Baratky, Raffinsky, Lengheriu, I.Costea, Sipos, Gavrilescu, Sadowski, Silvăț, Ghiurițan, Wetzer III, and Florian.

In the summer of 1937, the club changed its name from CFR București to Rapid București, modeling their new name on that of the Austrian club Rapid Wien.

The "railway workers" were no longer topping the league standings, but they still had supportive fans, and some players were selected for the national team. During those years, the competition format changed after various reorganizations, and Rapid won the Bessarabia Cup in 1942. They qualified for the final of the Mitropa Cup (precursor of the UEFA Champions League). In 1940, Rapid played to two ties in the Mitropa Cup semi-finals and was drawn for the final, which was never played, due to the outbreak of World War II.

1945–1970: The Railwaymen, a solid team

After the war, Rapid returned to the Bucharest Championship in the 1945–46 season, finally finishing 4th. After this season the club returned to its old name, CFR (Căile Ferate Române – Romanian Railways), and entered the 1946–47 Divizia A season, the first official national season after the end of the war, and ended in 5th place, two points away from 2nd place (Carmen București) and 13 from 1st place (ITA Arad). In the following season, 1947–48, the team finished 3rd, behind CFR Timișoara and ITA Arad. In the 1948–49 season, "the White and Burgundies" finished 2nd, only five points behind IC Oradea. Also, on 20 March 1949, CFR București obtained the most lopsided victory in its entire history, 12–2 against CFR Cluj.

Under the influence of the communist regime installed in the country after 1945, the 1950s started with a change from an autumn-spring season to a spring-autumn one. In the 1950 season Rapid became Locomotiva, a name much closer to the Soviet version, Lokomotiv, a change imposed on all the teams that belonged to the Romanian Railways, but the Giuleștenii finished again in 2nd place. The first relegation to Liga II came in 1951 when the club was ranked 11th, losing a three-way contest by a goal against Locomotiva Târgu Mureș and Știința Timișoara. Promoted one year later, from 1st place in Liga II, with 10 points over the second-ranked (Locomotiva Iași), Rapid would finish the 1953 season in 5th place. In 1954 season Locomotiva, in 12th place, was relegated for the second time. However, "The White and Burgundies" returned after only one year to Divizia A, following a good showing for the team, including a 4th-place ranking at the end of 1956, only 5 points behind 1st place (CCA București).