The next influential figure in Sinhala Buddhism was Parākramabāhu I (1153–1186) who unified the island and set out to reform the Sri Lankan Buddhist sangha. De Silva notes that this significant reform event was traditionally seen as the triumph of the Mahāvihāra and the repression of the other schools, but that "recent research has shown this to be quite inaccurate." All Buddhist institutions had been severely damaged by the Hindu Cholas, and the three main traditions had fragmented into eight fraternities. Parākramabāhu united all of these into a common community, which seems to have been dominated by the Mahāvihāra but did not bring an end to sectarian competition completely.