Similar to 奴隷制度廃止運動

Lockheed D-21

D101/102 Beijing–Harbin through train

D27/28 Beijing–Harbin through train

Douglas D-558-2 Skyrocket

Obice da 210/22

Cannone da 75/27 modello 06

Cannone da 75/27 modello 11

Cannone da 75/32 modello 37

Darwin Information Typing Architecture

Dasher (software)

Data Encryption Standard

German Equipment Works

Belyayev DB-LK

Dbx (noise reduction)

Douglas DC-1

JNR Class DE10

DEC Alpha

Liberal Revolution of 1820

Revolutions of 1848

Scramble for Africa

Golden age of alpinism

Silver age of alpinism

British Empire

Italian Republic (Napoleonic)

Unification of Italy

January Uprising