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Roughly 5-8 times.

Maybe rephrase your question and define all over the world.
 
5-8 times a month? a year? be more specific
No you be more specific.
How in the hell should anyone know the numbers about how often Rome traded with anyone within roughly 1000 years ?
 
Begging doesn't help. The lady already told you she isn't going to answer unless you ask a more specific question.

Like: Do you mean the empire as a whole or just the city? During which period? Etruscan, Republican, early Imperial, late Imperial? Are you interested in trade volume or trade price? Or do you perhaps want to know about the city's dependency on food from the provinces?

Edit: You asked the same unspecified question before and got exactly the same response, so why start a new thread?
 
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How often did the city of ancient rome trade and import goods from all over the world

There was a special harbour only for rome on the coast with channel connecting to rome.
There is an archeological dossier about it somewhere on the internet with a lot of detail (quantities,technology etc) google is your friend.
 
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Defeatists.

Attempt at answers are found in the other thread
Yes. But you also started off by asking OP to specify rather than write a full economic history of the city and empire of Rome ab urbe condita to the present day. I have no doubt you could but it's a little time-consuming. OP got a very reasonable answer in the other thread, asking the same question again, again without specification, is just bad form.
 
Yes. But you also started off by asking OP to specify rather than write a full economic history of the city and empire of Rome ab urbe condita to the present day. I have no doubt you could but it's a little time-consuming. OP got a very reasonable answer in the other thread, asking the same question again, again without specification, is just bad form.

True. But, to his credit, he gave me an incentive to try some back-of-envelope calcs that I likely would have never bothered with. 16 shiploads of grain per day gives me a new respect for the busy operations at Ostia.

And he gave me a reason to take another look at Pliny and find out about the fine qualities of Ethiopian sand. You never know when you will need that trivia.

With Ask, it is more productive to give a shot at an answer than expect him to specify it further.
 
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True. But, to his credit, he gave me an incentive to try some back-of-envelope calcs that I likely would have never bothered with. 16 shiploads of grain per day gives me a new respect for the busy operations at Ostia.
That is quite amazing. The Sound dues had 1.8 million registrations in 4-and-a-bit centuries, so that's less per day (12) than ancient Rome, and even the modern port of Rotterdam only goes to 75 per day or so.
 
How often did the city of ancient rome trade and import goods from all over the world

A literal answer to your question would be 'Once, taking place continuously over the course of many centuries' A place with as large a population and concentration as the city of Rome is continuously importing and exporting things. It never stops, ever. Some ship is always loading/unloading, a caravan or train is always in the midst of arriving or departing, etc.

If you want a more detailed answer, you will have to ask a more detailed question, but for most of the possible detailed questions, the answer is 'who knows'. Abdul gave you a really really good answer already.
 
If the OP keeps asking, maybe someone will give him the answer he wants or expects, rather than as accurate an answer as is possible for the vaguely worded question.
 
16 shiploads of grain per day gives me a new respect for the busy operations at Ostia.

Would likely have been higher due the need use the optimal sailing seasons from Egypt or North Africa. The Roman grain ships were big sail only vessels and lacked the flexibility of say the Venetian great galleys.
 
Would likely have been higher due the need use the optimal sailing seasons from Egypt or North Africa. The Roman grain ships were big sail only vessels and lacked the flexibility of say the Venetian great galleys.

I took sailing seasons into account for the 16 shiploads calculation. Otherwise it would be 11 shiploads per day.

Not sure if @Avernite confined his Sound calculations to sailing season.

Still, 16 shiploads daily is quite impressive operation. And doesn't end there. Workmen at Ostia would not only have to unload the grain from the ships but also proceed to load it all again on to river barges. There must have been scores of grain barges travelling each day between Ostia and Rome, to be unloaded once again in city warehouses. The Tiber must have been jammed with traffic. Quite the operation to keep the city fed. Granted, this is not all raw human power - Romans weren't shabby engineers and would likely have streamlined the process with cranes and other machinery. But still.

I've visited Rome several times, but never been down to Ostia. Is there anything still there to be seen?
 
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