 This was the second part of the city to be settled, being built in the 1920s by the Belgian colonial government as a home for civil servants and Swahili traders.The latter group were mostly members of the Islamic faith, which led to Nyamirambo being known as the "Muslim Quarter".Nyamirambo's Green Mosque ("Masjid al-Fatah") is the oldest mosque in Kigali, dating back to the 1930s.