and soldiers, implemented a programme of progressive social change, introducing reforms such as the eight-hour workday, the releasing of political prisoners, the abolition of press censorship, increases in workers' old-age, sick and unemployment benefits, and the bestowing upon labour the unrestricted right to organise into unions. A number of other reforms were carried out in Germany during the revolutionary period. It was made harder for estates to sack workers and prevent them from leaving when they wanted to; under the Provisional Act for Agricultural Labour of 23 November 1918 the normal period of notice for management, and for most resident labourers, was set at six weeks. In addition, a supplementary directive of December 1918 specified that female (and child) workers were entitled to a fifteen-minute break if they worked between four and six hours, thirty minutes for workdays lasting six to eight hours, and one hour for longer days. A decree on 23 December 1918 established committees (composed of workers' representatives "in their relation to the employer") to safeguard the rights of workers. The right to bargain collectively was also established, while it was made obligatory "to elect workers' committees on estates and establish conciliation committees". A decree on 3 February 1919 removed the right of employers to acquire exemption for domestic servants and agricultural workers. With the Verordnung of 3 February 1919, the Ebert government reintroduced the original structure of the health insurance boards according to an 1883 law, with one-third employers and two-thirds members (i.e. workers). From 28 June 1919 health insurance committees became elected by workers themselves. The Provisional Order of January 1919 concerning agricultural labour conditions fixed 2,900 hours as a maximum per year, distributed as eight, ten, and eleven hours per day in four-monthly periods. A code of January 1919 bestowed upon land-labourers the same legal rights that industrial workers enjoyed, while a bill ratified that same year obliged the States to set up agricultural settlement associations which, as noted by Volker Berghahn, "were endowed with the priority right of purchase of farms beyond a specified size". In addition, undemocratic public institutions were abolished, involving, as noted by one writer, the disappearance "of the Prussian Upper House, the former Prussian Lower House that had been elected in accordance with the three-class suffrage, and the municipal councils that were also elected on the class vote". A rift developed between the MSPD and USPD after Ebert called