Zambia Urban dwellers sometimes differentiate between urban and rural dialects of the same language by prefixing the rural languages with 'deep'. Most will thus speak Bemba and Nyanja in the Copperbelt; Nyanja is dominantly spoken in Lusaka and Eastern Zambia. English is used in official communications and is the language of choice at home among – now common – intertribal families. This continuous evolution of languages has led to Zambian slang which can be heard in daily life throughout Lusaka and other major cities. Portuguese has been introduced into the school curriculum due to the presence of a large Portuguese-speaking Angolan
Church of Central Africa Presbyterian – Synod of Zambia formed in 1899. This was composed of all of the mission stations and congregations established in northern Zambia. When the Synod was constituted in 1984, it was composed of 2 Presbyteries, 16 congregations and 4 ordained ministers. This group spread rapidly. According to the church's statistics as of August, 2010, the Zambia Synod had 67 congregations in 11 presbyteries and more than 65,000 members served by 58 ordained ministers and 8 evangelists. That means 1250 member per pastor, who serve the growing number of congregations. The Synod relocated in 2010 from Eastern Zambia to Lusaka. The official confessions are the