Complex sentence: The history of Hinduism in Africa is by most accounts very short when comparing it to the histories of Judaism, Christianity and Islam in the same continent; however, the presence of its practitioners in Africa dates back to pre-colonial times.
Split into simpler sentences: The history of Hinduism in Africa is very short when comparing it to the histories of Judaism, Christianity and Islam in the same continent. However, the presence of its practitioners in Africa dates back to pre-colonial times.