Party historian has story untold

Zhang Renya had a finely tuned sense of history and was keen to ensure the ledgers of time were as complete as possible, yet his own story remains surprisingly incomplete.

Among the biggest questions are when, where and how did he die, and where were his remains laid to rest?

With the 100th anniversary of the founding of the Communist Party of China in three years, finding the answers have become more pressing, as Zhang, one of the Party's first members, was pivotal in making sure the historical record of that momentous event remained intact.