How did ideas in Justinian's Code influence Western political and legal traditions? They provided useful models for modern political campaigns.
They encouraged European rulers to decentralize their power.
They helped legal thinkers to create modern international law.
They supported the development of parliamentary democracy.

it proved indian land claims were unjustified.

i believe it would influence their own way of understanding things. it shall be a foundation where they can draw or start an argument.   historians are also  scientists that  have their tools of analysis and expertise to unlock a variety of difficulties such as relationships of man, origin, politics, economy, and culture. based on facts and understanding on these areas, they may shade light to extract ideas and develop options to validate a hypothesis or debunk it.