Quechultenango (current) Immune response Robert W. Floyd Treating (dating) Recognition of Charlottetown as the Birthplace of Confederation Act Gerard van Honthorst Tabloid (newspaper format) Isotopes of molybdenum Bombardment of Tourane (1856) GEDA April Fools' Day Utility bill Sketch (drawing) Colin Nutley Documentary Channel (Canadian TV channel) Czechoslovak New Wave Gateway drug theory Digital Signal 1 Borrell II James C. Dever III