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Generating longitudinal data from a single country provides for the application of a most-similar-systems research design , which , in its turn , is the best means of identifying the immediate causes of particular historical developments . I used funny voices for different historical characters , plenty of role-plays and act-it-outs , lots more hands-on and creative activities that made history come alive for my students . I thoroughly enjoyed the author 's lively style of writing and the posing of probabilistic questions in their historical context . While there are many sites offering a diverse selection of poems and verse from the best-known names from previous historical eras , few Web sites offer more contemporary poems .