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I only found the years it was, not the day and month it started/ended.
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I couldn't find the exact date, so I used today's date
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I couldn't find the exact day and month it ended, so I used the date today and the month.
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I couldn't find the exact day and month when it started and ended, so I'm using today's date from both start and finish.
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adopted between 1865 and 1870. I couldn't find the exact day and month.
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I couldn't find the exact day and month, but I found the year.
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There were other electric lights before Edison's, but they didn't hold constant light.
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I couldn't find the actual day, so I used today's.
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I couldn't find the exact day, but I found the month and year.
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