The scientific contributions of native scholars in the Americas have often been overlooked or neglected. The simultaneous discoveries of European scientists reached a wider audience because of the number of education centers in close proximity. The existence of several scholarly journals also facilitated the rapid dispensation of new scientific knowledge. Although Spanish American scholars lived far from the centers of European knowledge, there was no appreciable time lag between European discoveries and their circulation in Spain's colonies. On the other hand, Spanish American discoveries were unknown in Europe or North America except to a handful of prominent scholars.