The most definitive date that I have found for Herod's death is April 1st, 4 BC. That makes the birth of Christ 5 BC and his 30th birthday in 26 AD, the 15th year of the reign of Tiberius Caesar [Luke 3:1]. Three and a half years later his death in 30 AD.
Romanists have to twist everything and search the astrological charts and tea leaves to try to place his death at 33AD because that year Passover was a Friday. Their problem with their 33 AD number is that it doesn't leave much time for Saul's multi-year persecution of Jewish Christians before his conversion on the road to Damascus.
The neat thing about having a 2000 year perspective is the ability to measure what is with what has happened.
Just like clothing fads come and go, so do heresies. We have seen in these forums examples of most of the great and many of the small heresies echoed. Those who do not understand history are doomed to repeat it. And there is a lot of repetition here.