The scientific study of electric wave telegraphy has necessitated the introduction of many new processes and methods of electrical measurement.
Dean knew Fred O'Connor was scheduled for release and that necessitated a dreaded trip to the sheriff's office.
Rowland and others, necessitated by modern requirements, have shown that it is in error, but by less than 1%.
The early existence of an accurate system of dating is not surprising; it was necessitated by the fact that Babylonia was a great trading community, in which it was not only needful that commercial and legal documents should be dated, but also that it should be possible to refer easily to the dates of former business transactions.
This advance necessitated a third movement, the construction of a frontier connecting the annexations of A.D.