Various documents relating to the 1921 annexation and the opposition of the inhabitants to the “Max” bill (petition; resolutions of the Municipal Councils; letters from Catholic organisations; press articles, etc.). ACB, Cabinet of the Mayor, 421-422. Petition sent by a group of residents of Laeken addressed to the mayor and aldermen of the City of Brussels, 18th June 1921, p.1. ACB, Cabinet of the Mayor, 422. Petition sent by a group of residents of Laeken addressed to the mayor and aldermen of the City of Brussels, 18th June 1921, p. 2. ACB, Cabinet of the Mayor, 422. Petition sent by a group of residents of Laeken addressed to the mayor and aldermen of the City of Brussels, 18th June 1921, p.3. ACB, Cabinet of the Mayor, 422. Law concerning the expansion of the City of Brussels with a view to the extension of the maritime facilities, approved and promulgated on 30th March 1921, published in the Belgian Official Journal on 2nd April 1921. ACB, Cabinet of the Mayor, 422.