<svg xmlns="http://www.w3.org/2000/svg"
     xmlns:xlink="http://www.w3.org/1999/xlink">

    <defs>
        <path id="myTextPath"
              d="M275,20
                 a1,1 0 0,0 100,0 
               "
                />
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    <svg y="15">
        <text x="10" y="100" style="stroke: #000000;">
          <textPath xlink:href="#myTextPath" >Text along a curved path...</textPath>
        </text>
    </svg>
</svg>