Research and teaching: (i) Archaeobotany (Palaeoethnobotany): the study of past human activities via studies of the remains of plants in archaeological contexts - reconstructing of past humans' food and environments, past climate, agricultural practices, commerce and economic relationship, social stratification, habitat, food technology, etc. (ii) Plant domestication and the origin and spread of agriculture: the "Founder crops" - the cereals, the pulses, oil and fiber plants - their wild progenitors, first domestication and spread from the core area outbound .