Stella posted new challenge:

After three day working on this finally I figure it out with the help from the comment and Stella's change to the post.

Its obvious after the change Stella made that the first letter of each line I D E S  are part of the answer. Then we have DXXIX which is roman number but we cant convert it like previous conversion that we separate each letter and add them, we need use it as one number I used online conversion such as :

http://www.onlineconversion.com/roman_numerals_advanced.htm

or 

http://www.thecalculatorsite.com/misc/romannumerals.php

after conversion we get 529.

Then at the end of the passage there is a number 1915912, that number needed a lot work to figure it out. that number is Julian date, by using Julian date convertor we get a a date. here the converter:

http://aa.usno.navy.mil/data/docs/JulianDate.php

After conversion we get this date: 533 June 25 12:00:00.0 UT  Saturday 

and that date is not complete yet we see in second line we se that what ever date we have is diminish by the roman number which was 529.

We need to subtract the date we got from the julian date by 529 days. to do that i used this website :

http://www.timeanddate.com/date/dateadd.html

After subtraction we get this date: Tuesday, January 13, 0532 

then Stella mention that skillfully treat this with classical name (IDES) OF date and year which the 13 is IDES.

well we have IDES of January 532 

Then the code we got we put at the end of the Url: Stl.la

Like this: Stl.la/IDESofJanuary532 

This will redirect us to this page: http://www.ancientsocieties.com/black-dollar/