Of the 100 hottest accomplishments of history, Cai Lun (also Ts’ai Lun) is noteworthy for inventing Paper as we know it today. He created a sludge from bark, hemp, and rags, ground it fine, and then spread out this gruel to dry, thus forming paper. Lightweight and durable. With some improvements, it is still made as it was in 105 AD, China.

Rhinos do not use paper, almost ever. But for YIR Readers it is common stuff all around the World. Before electronic communication, it was all there was.

Cai Lun ranks #7 in Important Figures of History. Your Inner Rhino gives credit where it’s due.