Mexico: Polity Style: 1917-2025
| 1 May 1917 | the Political Constitution of the United Mexican States (Constitución Política de los Estados Unidos Mexicanos que reforma la del 5 de febrero de 1857) is adopted by the Constituent Congress and signed by its members on 31 Jan 1917, promulgated on 5 Feb 1917, comes into operation on the date (1 May 1917) prescribed by Art. 1 of the Transitory Provisions (Constituent Congress Journal 1916-1917, 3:644-655; Diario Oficial, No. 30, 5 Feb 1917, pp. 149-161) [1] |
| 1 May 1917 - | Estados Unidos Mexicanos |
- A proposal of the Ccommittee for Constitutional Reform to use República Federal Mexicana in the preamble to the Constitution was defeated by voting of the Constituent Congress on 12 Dec 1916 and Estados Unidos Mexicanos was approved as a term for the preamble and used consistently in the text (Constituent Congress Journal 1916-1917, pp. 593-618)