Celluloid, the first synthetic plastic material, developed in the 1860s and 1870s from a homogeneous colloidal dispersion of nitrocellulose and camphor.
The meaning of AD is Anno Domini or Year of our Lord referring to the year of Christâs birth. The meaning of BC is Before Christ. CE is a recent term. It refers to Common Era and is used in place of A.D. the dates are the same i.e., 2009 AD is 2009 CE. BCE means Before Common Era. For example 400 BC is 400 BCE.
What is CE Marking (CE Mark)? CE Marking is the symbol as shown on the top of this page. The letters CE are the abbreviation of French phrase ConformitÃ© EuropÃ©ene which literally means European Conformity. The term initially used was EC Mark and it was officially replaced by CE Marking in the Directive 93/68/EEC in 1993. CE Marking is now used in all EU official documents. CE Mark is also in use, but it is NOT the official term.