National Seersucker Day in US

Arkansas Statehood Day on June 15 (1836);

Lobster Day in USA on June 15;

Hollerin' Contest Day on June 15;

Separation Day in Delaware on June 15 (in memory of the decision of the colonial assembly in 1776, which removed the responsibility of Britain for this territory);

National Fudge Day in USA on June 16;

Fresh Veggies Day on June 16;

Dump The Pump Day on June 16 (Third Thursday of June);

Berkshire Hathaway Day on June 16;

IBM Day on June 16;

Oracle Company Day on June 16 (Hardware and Software, Engineered to Work Together);