"Like sparks from a blacksmith's window" refers to the sparks that happen when a blacksmith is working. The meaning depends on the context. The context should usually be something like anger, exploding anger, or it could be excitement...
One main reason was because he was such a respectful figure. John Adams would have written it but when the delegates were deciding who should write it, they picked Jefferson because he excelled over Adams in writing.
Answer:There are, however, many other sources of information which should not be overlooked. Such sources include: the internet, newspapers, journals, transcripts from radio or TV programmes, leaflets, photographs and other artefacts (man-made objects).