The chemical lead was used by the Romans as lead rods to write on papyrus. These rods left a grey mark just like graphite. Hence, graphite was believed to be a type of lead. In 1564, a graphite deposit was discovered in England, which led to its widespread use for writing. The lead used in …
Why is 17 considered an unlucky number in Italy?
The number 17 can be written in Roman as XVII. When these numerals are rearranged, it reads VIXI, which means in Latin ‘I have lived’, meaning ‘my life is over’. The number 17 is therefore considered unlucky in Italy.
The earliest cotton in the world was spun and woven in India
Since ancient times cotton was spun in India with matchless skill. It is said that the delicate cotton from India was worn by Roman emperors who referred to it as ‘woven wind’. Mughal emperors fondly called the cotton ‘morning dew’ and ‘running water’.
Which chemical is used in the lead of a pencil?
The chemical lead was used by the Romans as lead rods to write on papyrus. These rods left a grey mark just like graphite. Hence, graphite was believed to be a type of lead. In 1564 a graphite deposit was discovered in England, which led to its widespread use for writing. The lead used in …
Why is 17 considered an unlucky number in Italy?
The number 17 can be written in Roman as XVII. When these numerals are rearranged, it reads VIXI, which means in Latin ‘I have lived’, meaning ‘my life is over’. The number 17 is therefore considered unlucky in Italy.