Christians should watch out for two events that would take place simultaneously on April 19 in New York City and London, Christian author Michael Synder says.

On that day, reproductions of the arch that stood in front of the Temple of Baal in Palmyra, Syria are going to be erected in Times Square and in Trafalgar Square. That would coincide with an occult festival related to the worship of a demon named Baal.

Writing for Charisma News, Synder wonders whether the arches to be installed would be the giant "welcome signs" for the Antichrist.

The author says his fears are based on these facts:

"April 19 is the first day of a 13-day period of time known as 'the Blood Sacrifice to the Beast' that culminates on the high occult holy day of Beltane on May 1," he says.

April 19 is also the date of the Feast of Moloch, an ancient Canaanite god that is repeatedly vilified in the Old Testament.

Synder also notes a series of horrific events that occurred on April 19:

● April 19, 1993 – Waco Massacre: An FBI assault lead to the burning down of the compound of a sect named Branch Davidians, killing 76 men, women and children.

● April 19, 1995 – Oklahoma City bombing – 168 people killed.

● April 20, 1999 – Columbine High School massacre – 13 people murdered, 21 injured.

● April 16, 2007 – Virginia Tech massacre – 32 killed; 17 injured.

● April 16, 2013 – Boston Marathon explosions – 3 killed; 107 injured.

● April 19, 2013 – Boston terrorist Tamerlan Tsarnaev shot to death.

Synder also notes that since 2016 is a leap year, April 20 will be the 111th day of the year, and triple numbers are considered to be "power dates" in the occult world.

He says the worship of Baal can be traced all the way back to an ancient king of Babylon that is known in Sumerian sources as Enmerkar, but that is known in the Bible as Nimrod.

Nimrod established the very first "New World Order" in the ancient world, and he fundamentally changed the course of human history.

After he died, this ancient king of Babylon eventually came to be worshipped as a sun god under different names: Marduk, Osiris, and Apollo among others.

Many secret societies and occult groups believe that someday this ancient deity will be "resurrected" and will once again take his place as the ruler of the world.

Moreover, many Christian scholars believe that there is a connection between Nimrod and the coming Antichrist.

Synder wonders: "Is it just a coincidence that we are erecting arches for this ancient deity in New York and London on a date that is exceedingly significant for those that worship this ancient deity? Could it be possible that there is more to these 'gateways' that are being constructed than we are being told?"

The author notes that mankind has entered a period of time known in the Bible as "the last days."

"From this point forward, things are going to get much, much stranger. Ultimately, the world that we live in is going to come to resemble something out of a post-apocalyptic science fiction novel," Synder warns.