| Babylon |
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1872 Formed from Town of Huntington, formerly called Huntington South |
| Brookhaven |
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1655 Settlers purchased land from Setauket Indians, founded Cromwell Bay, now Setauket |
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1661 Became part of colony of Connecticut |
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1664 Became part of the colony of New York |
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1666 Incorporated by patent |
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1788 Recognized as a town by the State of New York |
| East Hampton |
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1639 Gardiners Island granted to Lion Gardiner |
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1648 Western part of town purchased from Montauk Indians by Governor of Connecticut and New Haven, and conveyed to settlers from Southampton, LI |
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1657 Became part of colony Connecticut |
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1664 Became part of colony of New York |
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1788 Recognized as a town by the State of New York |
| Huntington |
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1653 Purchased from Matinecock Indians and settled by English from New England and other parts of LI |
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1660 Became part of colony of Connecticut |
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1664 Became part of colony New York |
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1666 Incorporated by patent |
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1788 Recognized as a town by the State of New York |
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1872 Daughter town of Babylon formed |
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1886 Annexed Lloyds Neck from Town of Oyster Bay, Queens County (Now Nassau County) |
| Islip |
|
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1683 First land purchase from Indians, first of several patents granted |
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1683-1710 Settled by patentees and others from Suffolk, Queens, and NYC |
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1710 Recognized as a precinct by colonial government |
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1788 Recognized as a town by the State of New York |
| Riverhead |
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c. 1658 Settled as part of Southold |
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1728 Riverhead hamlet becomes county seat |
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1792 Formed from Town Southold |
| Shelter Island |
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1652 Settled |
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1666 Incorporated by patent (Shelter Island Manor), but government shared with Southold until 1730 |
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1788 Recognized as a town by the State of New York |
| Simthtown |
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1659 Wyandance, Sachem of Montauks conveyed land to Lion Gardiner as a free gift |
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1663 Richard Smith purchases site of Smithtown from Gardiner |
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1665 Patented by Governor |
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1788 Recognized as a town by the State of New York |
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