Timeline-Data/singularity.json at master · TimelineConsortium/Timeline-Data · GitHub

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[
    {
        "content_text":"Personal computer",
        "start_date":"1975",
        "end_date":""
    },
    {
        "content_text":"Computer",
        "start_date":"1950",
        "end_date":""
    },
    {
        "content_text":"Telephone, electricity, radio",
        "start_date":"1875",
        "end_date":""
    },
    {
        "content_text":"Industrial revolution",
        "start_date":"1760",
        "end_date":""
    },
    {
        "content_text":"Printing, experimental method",
        "start_date":"1440",
        "end_date":""
    },
    {
        "content_text":"City states",
        "start_date":"-800",
        "end_date":""
    },
    {
        "content_text":"Writing, wheel",
        "start_date":"-5500",
        "end_date":""
    },
    {
        "content_text":"Agriculture",
        "start_date":"-13000",
        "end_date":""
    },
    {
        "content_text":"Art, early cities",
        "start_date":"-40000",
        "end_date":""
    },
    {
        "content_text":"Homo Sapiens Sapiens",
        "start_date":"-200000",
        "end_date":""
    },
    {
        "content_text":"Homo Sapiens",
        "start_date":"-600000",
        "end_date":""
    },
    {
        "content_text":"Spoken language",
        "start_date":"-100000",
        "end_date":""
    },
    {
        "content_text":"Genus Homo, Homo Erectus, specialized stone tools",
        "start_date":"-2800000",
        "end_date":""
    },
    {
        "content_text":"Human ancestors walk upright",
        "start_date":"-4200000",
        "end_date":""
    },
    {
        "content_text":"Family Hominidae",
        "start_date":"-14000000",
        "end_date":""
    },
    {
        "content_text":"Superfamily Hominoidea",
        "start_date":"-2500000",
        "end_date":""
    },
    {
        "content_text":"Primates",
        "start_date":"-65000000",
        "end_date":""
    },
    {
        "content_text":"Class mammalia",
        "start_date":"-225000000",
        "end_date":""
    },
    {
        "content_text":"Reptiles",
        "start_date":"-312000000",
        "end_date":""
    },
    {
        "content_text":"Cambrian Explosion (body plans)",
        "start_date":"-542000000",
        "end_date":""
    },
    {
        "content_text":"Eukaryotic cells, multicellular organisms",
        "start_date":"-2700000000",
        "end_date":""
    },
    {
        "content_text":"Life",
        "start_date":"-3500000000",
        "end_date":""
    }
]