Introduction

It has been recognized for a long time that languages across a broad sub-Saharan belt from the western end of the continent to the escarpment of the Ethiopian Plateau in the east display certain linguistic affinities. At the same time, it has been difficult to identify precisely the nature and range of these affinities and to provide a plausible explanation for them.

I propose in Güldemann (2003a) that the distribution of logophoric marking in Africa follows an areal pattern in that it is regularly found in languages of the sub-Saharan belt referred to above, but is virtually absent from the rest of the continent. This finding is the starting point for a more systematic investigation of the following questions:

1. Does this geographical region share other linguistic traits?

2. If so, do these define some sort of linguistic area?

3. If so, how has this area come into being?

I present in section 5.2 several linguistic features which appear to share a roughly similar distribution across the African continent, as well as additional candidate features which may support the evidence provided in this chapter. Section 5.3 briefly surveys previous approaches to the general observation of linguistic commonalities across the sub-Saharan belt, among which there is the proposal that most of the languages involved belong to a genealogical lineage comprising Greenberg's super-groups Niger-Kordofanian and Nilo-Saharan.