Input (grade 13): From 1854 to 1862, age 31 to 39, Wallace traveled through the Malay Archipelago or East Indies (now Malaysia and Indonesia), to collect specimens for sale and to study nature.
Output (grade 11): From 1854 to 1862, age 31 to 39, Wallace traveled through the Dutch East Indies (now Malaysia and Indonesia), to collect specimens for sale and to study nature.