Question: Aniki-Bóbó is akin to a children's counting rhyme that has existed in various forms since well before when?
{'answer': '1820', 'supporting_facts': [['Aniki-Bóbó', 0], ['Aniki-Bóbó', 5], ['Eeny, meeny, miny, moe', 0], ['Eeny, meeny, miny, moe', 2]]}