Statement 1: The First Buddhist Council was held shortly after the Mahaparinirvana of the Buddha (traditionally 483 BC) at the Saptaparni Cave near Rajgriha, under the patronage of King Ajatashatru and presided over by Mahakassapa. Its purpose was to compile the Sutta Pitaka and Vinaya Pitaka. Statement 2: The Second Buddhist Council was held approximately 100 years after the first (traditionally 383 BC) at Vaishali, not Ujjain. It was convened to address disputes over the Vinaya rules practiced by some monks. Statement 3: The Third Buddhist Council was convened at Pataliputra during the reign of Emperor Ashoka (traditionally around 250 BC), presided over by Moggaliputta Tissa. Its aims included purifying the Sangha and compiling the Abhidhamma Pitaka, leading to the dispatch of missionaries to various regions. Statement 4: The Fourth Buddhist Council (referring to the Sarvastivada school council) was held under the patronage of the Kushan emperor Kanishka, traditionally in the 1st century AD (often cited as 72 AD or later), with the location being either Purushapura (Peshawar) or Kundalavana in Kashmir. It was presided over by Vasumitra and aimed at compiling commentaries on the Buddhist scriptures.