The duo revolutionized pair skating, becoming the first team to perform jumps side by side.

When the war began, Bernes became among the first singers to perform for the Soviet troops.

Since the late 1990s, PC processors have become fast enough to perform mainframe emulation without the need for a peripheral card.

During differentiation the cells become specialized to perform various functions.

During the same time period, circumcision was becoming easier to perform.

Mississippi has recently enacted a law which puts more stringent requirements on physicians who wish to become licensed to perform abortions in the state.

When reflexes that inhibit flexibility are released the splits then become easier to perform.

The greater the power of the executive grows, the more difficult it becomes for the other branches to perform their constitutional roles.

It became logically possible for bureaucratic structures to perform all four input and all three output functions.

They become one of the first modern bands to perform in communist Poland.