Descending sequence with the fine-structure constant

The digits 6-9-8-7 contain a descending sequence 9→8→7 inside. Peak at nine and a smooth descent — a number that reached its zenith and is returning in order.

6987 = 3×17×137. The number 137 is the denominator of the fine-structure constant (≈1/137) — one of nature's most mysterious constants, which Pauli called 'the number of God'.

In 698, the Arabs finally captured Carthage, destroying the last Byzantine outpost in Africa — the end of the ancient West and the start of a new era for North Africa.