Year 730 (DCCXXX) was a common year starting on Sunday (link will display the full calendar) of the Julian calendar. The denomination 730 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.
730 in various calendars
730
DCCXXX
1483
179
ԹՎ ՃՀԹ
5480
651–652
137
1680
1274
92
6238–6239
己巳年 (Earth Snake)
3427 or 3220
— to —
庚午年 (Metal Horse)
3428 or 3221
446–447
1896
722–723
4490–4491
786–787
651–652
3830–3831
10730
108–109
111–112
Tenpyō2
(天平2年)
623–624
730
DCCXXX
3063
1182 before ROC
民前1182年
−738
1041/1042 AG
1272–1273
阴土蛇年
(female Earth-Snake)
856 or 475 or −297
— to —
阳金马年
(male Iron-Horse)
857 or 476 or −296