Final answer:
The specific river in Mozambique that flooded, affecting over 100,000 people, is not mentioned in the provided references. Additional context is needed to accurately identify the river responsible for the flooding event in question.
Step-by-step explanation:
The river that flooded in Mozambique affecting over 100,000 people is not specified in the provided references. However, Mozambique has experienced severe flooding in its history. While there is an account of a massive landslide in 1963, this event did not occur in Mozambique. The same goes for the description of the 1998 river flooding in Bangladesh. The provided information highlights the strategic importance of river systems, such as the Limpopo River basin, in southern Africa throughout history but does not directly mention recent flooding in Mozambique. Moreover, details about flooding in countries like China and discussions on elevated Nile river levels in the past shed light on how water bodies can significantly impact human life but also do not provide information on the specific Mozambican event in question. To discuss the flood that affected over 100,000 people in Mozambique, additional information regarding the date and context of the flood is necessary to provide an accurate response.