Saturday, August 21, 2004 Bletchley Park's USA Day celebrates American culture Stars and StripesEuropean edition, Thursday, August 19, 2004 MILTON KEYNES, England — Several events are planned to celebrate USA Day at Bletchley Park, the home of World War II codebreakers who cracked the complex German Enigma code.The American Garden Trail at the park will be opened as part of the events that start at 10:30 a.m. Saturday.In addition, baseball and American football — complete with cheerleading — will be played. And American food such as hotdogs and Cajun chicken will be available, along with buttermilk pancakes and popcorn.The trail...