do i need to learn a lot of roman numerals before visiting rome?

Rome is beautiful but the most of the people who lives here...meh...

No but you must wear Roman clothing .A toga if you are a man, with leather sandals.

It helps if you have a bag of gold coins as they don't accept credit cards. 

Bring a couple of slaves with you (blonde boys are very fashionable) and you will fit right in and be invited into the homes of the Roman gentry.

Babylon on seven hills = Moscow.

Whore of Babylon = Church that worked for Commies (Sergian heresy).

Orthodoxy = the only true faith.

70 million were murdered.

Babylonian captivity = 73 year captivity.

3 year Apocalypse was served in Russia under miniantichrist Lenin.

Commies will officially come back; then China attacks Russia; then WW3; then resurrected saint Seraphim of Sarov shows new Ruski Orthodox Tsar; this tsar will slay traitors inside church and gov't. If there are 300 bishops, then 297 will be executed while 3 will be left to live.

Ecumemism = all religions getting together to praise Satan = 263 heresies.

Modern documents are from Satan; burn them.

To escape mark of the beast, hide within a small group (10-15 people); no documents; no electronics so that you won't be tracked.

Alaska will be Russian like Kaliningrad is. So, hide in Russia's north (a little bit away from coasts because of manmade tsunamis and H2S stinkjob). So like 100 km away from Moscow because it will sink. If you're in America, migrate to Russian Alaska (away from coasts).

Again: no electronics once you hid because antichrist will be shown on broken unplugged TV set from 1970s because of Tesla's ether; forgive me.

It would help to read some plaques and stuff, but otherwise, no you don't need to be a math whiz in Roman Numerals. 

No, you don't need to learn Roman numerals, but it's not all that difficult.

Only if you're going by time machine. Tu quoque oportet linguam Latinam discere.