<table>
  <caption>MLW Alumni</caption>
  <thead>
    <tr>
      <th rowspan="2" id="name" scope="col">Name</th>
      <th colspan="2" id="path">Career path</th>
      <th rowspan="2" id="year">Year</th>
    </tr>
    <tr>
      <th id="past" scope="col">Past</th>
      <th id="future" scope="col">Destiny</th>
    </tr>
  </thead>
  <tbody>
    <tr>
      <th id="hal" scope="row">Hal Gibrah</th>
      <td headers="hal path past">Calculator</td>
      <td headers="hal path future">Mars rover</td>
      <td>2020</td>
    </tr>
    <tr>
      <th id="cathy" scope="row">Cathy Terr</th>
      <td headers="cathy path past">Waste disposal</td>
      <td headers="cathy path future">Automated teller</td>
      <td>2018</td>
    </tr>
    <tr>
      <th id="lou" scope="row">Lou Minious</th>
      <td headers="lou path past">Lightbulb</td>
      <td headers="lou path future">Smart bulb</td>
      <td>1956</td>
    </tr>
  </tbody>
</table>

table,
tr > * {
  border: 1px solid;
}