[['state', 'type', 'name', 'title', 'royal house', 'from'], ['cai', 'sovereign', 'yi', 'marquis', 'ji', '837 bc'], ['cao', 'sovereign', 'dai', 'count', '-', '826 bc'], ['chen', 'sovereign', 'li', 'duke', '-', '831 bc'], ['chu', 'sovereign', 'xiong xun', 'viscount', 'mi', '821 bc'], ['jin', 'sovereign', 'xian', 'marquis', 'ji', '822 bc'], ['jin', 'sovereign', 'mu', 'marquis', 'ji', '811 bc'], ['lu', 'sovereign', 'wu', 'duke', 'ji', '825 bc'], ['lu', 'sovereign', 'yi', 'duke', 'ji', '815 bc'], ['qi', 'sovereign', 'li', 'duke', 'jiang', '824 bc'], ['qi', 'sovereign', 'wen', 'duke', 'jiang', '815 bc'], ['qin', 'sovereign', 'zhuang', 'duke', 'ying', '822 bc'], ['song', 'sovereign', 'hui', 'duke', '-', '830 bc'], ['wey', 'sovereign', 'li', 'marquis', '-', '855 bc'], ['wey', 'sovereign', 'wu', 'duke', '-', '812 bc'], ['yan', 'sovereign', 'li', 'marquis', '-', '826 bc']]
the earliest starting date for a State Leader is 855 Bc
the earliest starting date for a [ENT] is [ENT]