Complex sentence: More than two millennia ago Greek philosophers explored in detail the many implications of this uniformity, culminating in Euclid's Elements; however, it was not until recent times that a handful of mathematical innovators generalized the concept of dimensions to include more than three.
Split into simpler sentences: More than two millennia ago Greek philosophers explored in detail the many implications of this uniformity, culminating in Euclid's Elements. However, it was not until recent times that a handful of mathematical innovators generalized the concept of dimensions to include more than three.