Cybersecurity refers to the preventative techniques used to protect the integrity of networks, programs and data from attack, damage, or unauthorized access.
Pencils were invented in 1795 by a French scientist named Nicolas-Jacques Conte. He used a mixture of graphite, clay and water baked in a kiln to create the lead of the pencil. He then housed this mixture in a wooden frame for writing. Continue Reading.
The firm was founded by J.S. Staedtler in 1835 and produces a large variety of writing instruments, including drafting pencils, propelling pencils, professional pens and standard wooden pencils.It also produces plastic erasers, rulers, compasses and other drawing/writing accessories.n 3 October 1835, J.S. Staedtler received permission from the municipal council to produce blacklead, red chalk and pastel pencils in his industrial plant. In 1866, the company had 54 employees and produced 15,000 gross (2,160,000 pencils) per year.