Such writings appeared in 8th century, and reached their apex in the 10th century.

These afflictions reached their apex in 1922; many declared him incurable.

In fact, in 1632 he would become secretary to the king, thus reaching the apex of his political career.

Under his rule, the emirate reached the apex of its power.

When the larva reaches the apex of the leaf it crosses a leafrib and eats its way back towards the egg site.