📚 How Precision Timekeeping Changed Everything B1B2🎯 16 grammar forms💬 36 examples⏱️ 4-5 minutes📖 Story Summary−This article traces humanity's journey from ancient sundials to atomic clocks, exploring how precise time measurement transformed society. Early civilizations relied on the sun and simple devices like water clocks and hourglasses, but these methods were inaccurate. The mechanical clock…