2 published verifications about Roman Empire Roman Empire ×
“The formula of the mortar used in construction in the Roman Empire is still unknown.”
The claim is not supported by the evidence. Roman mortar is not an unsolved mystery: its main ingredients and broad formulation are well documented in ancient texts and modern materials studies, and researchers have chemically characterized and recreated it. What remains under study are regional variants and some durability mechanisms, not whether the formula is known at all.
“The Dacian Wars, fought between the Roman Empire and the kingdom of Dacia under Emperor Trajan, resulted in the Roman conquest of Dacia in 106 AD.”
The claim accurately captures the established historical consensus. All consulted sources confirm that Trajan's Dacian Wars culminated in the fall of Sarmizegetusa, the death of King Decebalus, and the formal annexation of Dacia as a Roman province in 106 AD. The claim's use of the plural "Dacian Wars" and the phrase "resulted in" is consistent with the two-stage process (wars of 101–102 and 105–106 AD) documented across academic and reference sources.