16,800,000-year period over which a human lifespan increases from ten years to 84,000 years (by one year per century) and then decreases back to ten (by one year per century)
ENTael (/ˈteɪl/; simplified Chinese: 两; traditional Chinese: 兩; pinyin: liǎng) or tahil can refer to any one of several weight measures of the Far East.