Timeline and Sources of History

Pinky found a fifty-year-old map in her grandmother's cupboard. She says it is useless now because it is old. Her friend says even an old thing can tell you something. Who is right?

Pinky found a fifty-year-old market bill in her grandmother's cupboard. She says it is useless because it is old. Her brother says it can tell us a lot. Who is right?

An old book says a king was great and kind. The book was written in that king's own court. Ravi says it must be true because it was written at the time. Is Ravi's reasoning strong?

About an old battle, two kingdoms' books say different things — each claims it won. Ayesha says this means one book is fully false and the other fully true; just find the true one. Is that the only right approach?

People of an old civilisation travelled for months by bullock cart. Tanu says they were foolish — why didn't they just use a bus or train? Is it fair to judge that era by today's means?

For an old era we find written records only of kings and battles, nothing about ordinary farmers' lives. Vivek says this means common people's lives were unimportant then, or they would have been written about. Does "not written down" mean "was not important"?