As this Court explained 100 and some years ago in its Burrows-Giles opinion, such constructions are accorded very great weight and, as that Court went on to say, when consistent and unchallenged for over a century are almost conclusive that consistent construction by Congress of its authority under the Copyright and Patent Clause now has lasted from the 105th -- from the first through the 105th Congress.
The copyright clause has remained the same for over a century.
( z1 remain :ARG1 ( z2 clause :topic ( z3 copyright ) ) :ARG3 ( z4 same :ARG1 z2 ) :duration ( z5 over :op ( z6 temporal-quantity :quant 1 :unit ( z7 century ) ) ) )