Why do we tend to take indoor lighting for granted? This illuminating décor item is functional, welcoming, and diverse. So, if you’re reading this at night – an appreciative nod towards whatever’s keeping your room lit should do!  

Once upon a time, indoor lighting was the realm of candle lighting, torches, and other such fire-based features. And before long, as is our habit, humans made these light sources aesthetically pleasing.  

How? By inventing …