"Old Style" meaning in English

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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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        {
          "_dis": "47 53",
          "kind": "topical",
          "langcode": "en",
          "name": "Calendar",
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          "ref": "1891, Thomas Hardy, Tess of the d'Urbervilles, volume 1, London: James R. Osgood, McIlvaine and Co., page 16:",
          "text": "The banded ones were all dressed in white gowns — a gay survival from Old Style days, when cheerfulness and May-time were synonyms — days before the habit of taking long views had reduced emotions to a monotonous average.",
          "type": "quote"
        },
        {
          "ref": "1911, James George Frazer, The Golden Bough, volume 10, page 244:",
          "text": "As the [Manx] people reckon this festival according to the Old Style, Hollantide in the Isle of Man is our twelfth of November.",
          "type": "quote"
        }
      ],
      "glosses": [
        "The Julian calendar system, especially with reference to Russia, where it continued to be used until the early 20th century."
      ],
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        [
          "Julian calendar",
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          "Russia",
          "Russia"
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        "(historical) The Julian calendar system, especially with reference to Russia, where it continued to be used until the early 20th century."
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        }
      ],
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          "_dis1": "29 71",
          "word": "New Style"
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      ],
      "glosses": [
        "A dating system in which March 25 is the New Year's Day."
      ],
      "id": "en-Old_Style-en-noun-67G21733",
      "links": [
        [
          "New Year's Day",
          "New Year's Day"
        ]
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        "(historical) A dating system in which March 25 is the New Year's Day."
      ],
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        "historical",
        "uncountable"
      ]
    }
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    "Old Style and New Style dates"
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          "ref": "1891, Thomas Hardy, Tess of the d'Urbervilles, volume 1, London: James R. Osgood, McIlvaine and Co., page 16:",
          "text": "The banded ones were all dressed in white gowns — a gay survival from Old Style days, when cheerfulness and May-time were synonyms — days before the habit of taking long views had reduced emotions to a monotonous average.",
          "type": "quote"
        },
        {
          "ref": "1911, James George Frazer, The Golden Bough, volume 10, page 244:",
          "text": "As the [Manx] people reckon this festival according to the Old Style, Hollantide in the Isle of Man is our twelfth of November.",
          "type": "quote"
        }
      ],
      "glosses": [
        "The Julian calendar system, especially with reference to Russia, where it continued to be used until the early 20th century."
      ],
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      ],
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      ],
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