library of congress classification lcc the library of congress classification lcc is the system of classification used in most research and university libraries in the united states lcc was created in 1891 specifically to meet the needs of the library of congress collection it is based on twenty one classes designated by a single letter
taxonomy, taxology. 1. the technique or science of classification. 2. the scientific identification, naming, and classification of living things. Also called systematics.
Hydra &mdash; Classifications. Scientists aim to describe a single 'tree of life' that reflects the evolutionary relationships of living things. However, evolutionary relationships are a matter of ongoing discovery, and there are different opinions about how living things should be grouped and named. EOL reflects these differences by supporting several different scientific 'classifications'. Some species have been named more than once.