Sentence:  The commercial traveller, a personage unknown to antiquity, is one of the striking figures created by the manners and customs of our present epoch. ... Our century will bind the realm of isolated power, abounding as it does in creative genius, to the realm of universal but levelling might; equalizing all products, spreading them <WSD>broadcast</WSD> among the masses, and being itself controlled by the principle of unity,—the final expression of all societies. 
Meaning of the word marked with <WSD> tags:  Widely in all directions; abroad.