The documents show details of daily life, such as how heavy wax candles were a crucial purchase in order for 15th century worshippers to see the Eucharist during Mass.
He also put in place a vigorous international expansion plan that included the purchase last year of Volkswagen's Brazilian heavy-truck business and this year of a 25% stake in Sinotruk, China's biggest maker of heavy trucks.
But the maker of International brand heavy trucks and buses did make an important strategic move Thursday by announcing it will purchase diesel engines and after-treatment components from its rival Cummins, which is already producing engines that comply with emissions rules set by the U.S. Environmental Protection Agency.