small compared with Rio de Janeiro or Guayaquil, for example. About 60,000 families lived in such shantytowns, known in Uruguay as cantegriles. An intensive program of public housing construction was undertaken in the 1970s and 1980s, but it had not solved the problem by 1990. In 1990 Greater Montevideo was by far the most developed region of Uruguay and dominated the nation economically and culturally. It was home to the country's two universities, its principal hospitals, and most of its communications media (television stations, radio stations, newspapers, and magazines). Attempts by the military governments from 1973 to 1985 to promote the development of the north of the country (partly for strategic reasons) failed to change this pattern of extreme centralization. In one way, however, they achieved a major success: the introduction of direct dialing revolutionized the country's long distance telephone system. By contrast, the local telephone network in Montevideo remained so hopelessly antiquated and unreliable that many firms relied on courier services to get messages to other downtown businesses. Until the construction boom of the late 1970s, relatively few modern buildings had been constructed. In many parts of the center, elegant nineteenth-century houses built around a central patio were still to be seen in 1990. In some cases, the patio was open to the air, but in most cases it was covered by a skylight, some of which were made of elaborate stained glass. Few of these houses were used for single-family occupancy, however, and many had been converted into low-cost apartments. The middle classes preferred to live in more modern apartments near the city center or the University of the Republic. Alternatively, they might purchase a single-family villa with a small yard at the back. Many of these were close to the beaches running east from the downtown along the avenue known as the Rambla. In Pocitos, however, high-rise apartments had replaced the single-family homes on those streets closest to the beach. The coast Stretching east from Montevideo along the Río de la Plata are the departments of Canelones, Maldonado, and Rocha. The inland portion of Canelones is an area of small farms and truck gardens, which produce vegetables for the capital. It was relatively poor in 1990. Many inhabitants of the department's small towns also commuted to jobs in Montevideo by express bus. Along the coast lie a string of small seaside towns (balnearios), from which more prosperous