765 ILCS 5/33

All original wills duly proved, or copies thereof duly certified, according to law, and exemplifications of the record of foreign wills made in pursuance of the law of congress in relation to records in foreign states, may be recorded in the same office where deeds and other instruments concerning real estate may be required to be recorded; and the same shall be notice from the date of filing the same for record as in other cases, and certified copies of the record thereof shall be evidence to the same extent as the certified copies of the record of deeds.