Please read the following table in HTML format from a webpage and then answer the question in detail according to the table. Each table cell is defined by a <td> and a </td> tag. Each table row starts with a <tr> and ends with a </tr> tag. 'rowspan=m' and 'colspan=n' represents a cell spaning over 'm' rows and 'n' columns.

Webpage title:
Ingrid Kristiansen
Table title:
Achievements
Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=1 rowspan=1 > Year </th><th colspan=1 rowspan=1 > Competition </th><th colspan=1 rowspan=1 > Venue </th><th colspan=1 rowspan=1 > Position </th><th colspan=1 rowspan=1 > Event </th><th colspan=1 rowspan=1 > Notes </th></tr>
<tr> <th colspan=6 rowspan=1 > Representing Norway </th></tr>
<tr> <td colspan=1 rowspan=1 > 1980 </td><td colspan=1 rowspan=1 > Stockholm Marathon </td><td colspan=1 rowspan=1 > Stockholm, Sweden </td><td colspan=1 rowspan=1 > 1st </td><td colspan=1 rowspan=1 > Marathon </td><td colspan=1 rowspan=1 > 2:38:45 </td></tr>
<tr> <td colspan=1 rowspan=2 > 1981 </td><td colspan=1 rowspan=1 > Stockholm Marathon </td><td colspan=1 rowspan=1 > Stockholm, Sweden </td><td colspan=1 rowspan=1 > 1st </td><td colspan=1 rowspan=1 > Marathon </td><td colspan=1 rowspan=1 > 2:41:34 </td></tr>
<tr> <td colspan=1 rowspan=1 > New York City Marathon </td><td colspan=1 rowspan=1 > New York, United States </td><td colspan=1 rowspan=1 > 2nd </td><td colspan=1 rowspan=1 > Marathon </td><td colspan=1 rowspan=1 > 2:30:08 </td></tr>
<tr> <td colspan=1 rowspan=3 > 1982 </td><td colspan=1 rowspan=1 > Stockholm Marathon </td><td colspan=1 rowspan=1 > Stockholm, Sweden </td><td colspan=1 rowspan=1 > 1st </td><td colspan=1 rowspan=1 > Marathon </td><td colspan=1 rowspan=1 > 2:34:26 </td></tr>
<tr> <td colspan=1 rowspan=1 > European Championships </td><td colspan=1 rowspan=1 > Athens, Greece </td><td colspan=1 rowspan=1 > 3rd </td><td colspan=1 rowspan=1 > Marathon </td><td colspan=1 rowspan=1 > 2:36:38 </td></tr>
<tr> <td colspan=1 rowspan=1 > New York City Marathon </td><td colspan=1 rowspan=1 > New York, United States </td><td colspan=1 rowspan=1 > 5th </td><td colspan=1 rowspan=1 > Marathon </td><td colspan=1 rowspan=1 > 2:33:36 </td></tr>
<tr> <td colspan=1 rowspan=1 > 1983 </td><td colspan=1 rowspan=1 > Houston Marathon </td><td colspan=1 rowspan=1 > Houston, United States </td><td colspan=1 rowspan=1 > 1st </td><td colspan=1 rowspan=1 > Marathon </td><td colspan=1 rowspan=1 > 2:33:27 </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=4 > 1984 </td><td class="highlighted"  colspan=1 rowspan=1 > Houston Marathon </td><td colspan=1 rowspan=1 > Houston, United States </td><td class="highlighted"  colspan=1 rowspan=1 > 1st </td><td colspan=1 rowspan=1 > Marathon </td><td colspan=1 rowspan=1 > 2:27:51 </td></tr>
<tr> <td colspan=1 rowspan=1 > World Cross Country Championships </td><td colspan=1 rowspan=1 > New York, United States </td><td colspan=1 rowspan=1 > 4th </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > London Marathon </td><td colspan=1 rowspan=1 > London, United Kingdom </td><td class="highlighted"  colspan=1 rowspan=1 > 1st </td><td colspan=1 rowspan=1 > Marathon </td><td colspan=1 rowspan=1 > 2:24:26 </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > Olympic Games </td><td class="highlighted"  colspan=1 rowspan=1 > Los Angeles, United States </td><td class="highlighted"  colspan=1 rowspan=1 > 4th </td><td class="highlighted"  colspan=1 rowspan=1 > Marathon </td><td colspan=1 rowspan=1 > 2:27:14 </td></tr>
<tr> <td colspan=1 rowspan=3 > 1985 </td><td colspan=1 rowspan=1 > World Cross Country Championships </td><td colspan=1 rowspan=1 > Lisbon, Portugal </td><td colspan=1 rowspan=1 > 3rd </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > London Marathon </td><td colspan=1 rowspan=1 > London, United Kingdom </td><td colspan=1 rowspan=1 > 1st </td><td colspan=1 rowspan=1 > Marathon </td><td colspan=1 rowspan=1 > 2:21:06 </td></tr>
<tr> <td colspan=1 rowspan=1 > Chicago Marathon </td><td colspan=1 rowspan=1 > Chicago, United States </td><td colspan=1 rowspan=1 > 2nd </td><td colspan=1 rowspan=1 > Marathon </td><td colspan=1 rowspan=1 > 2:23:05 </td></tr>
<tr> <td colspan=1 rowspan=3 > 1986 </td><td colspan=1 rowspan=1 > Boston Marathon </td><td colspan=1 rowspan=1 > Boston, United States </td><td colspan=1 rowspan=1 > 1st </td><td colspan=1 rowspan=1 > Marathon </td><td colspan=1 rowspan=1 > 2:24:55 </td></tr>
<tr> <td colspan=1 rowspan=1 > European Championships </td><td colspan=1 rowspan=1 > Stuttgart, West Germany </td><td colspan=1 rowspan=1 > 1st </td><td colspan=1 rowspan=1 > 10,000 m </td><td colspan=1 rowspan=1 > 30:23.25 </td></tr>
<tr> <td colspan=1 rowspan=1 > Chicago Marathon </td><td colspan=1 rowspan=1 > Chicago, United States </td><td colspan=1 rowspan=1 > 1st </td><td colspan=1 rowspan=1 > Marathon </td><td colspan=1 rowspan=1 > 2:27:08 </td></tr>
<tr> <td colspan=1 rowspan=4 > 1987 </td><td colspan=1 rowspan=1 > World Cross Country Championships </td><td colspan=1 rowspan=1 > Warsaw, Poland </td><td colspan=1 rowspan=1 > 3rd </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > London Marathon </td><td colspan=1 rowspan=1 > London, United Kingdom </td><td colspan=1 rowspan=1 > 1st </td><td colspan=1 rowspan=1 > Marathon </td><td colspan=1 rowspan=1 > 2:22:48 </td></tr>
<tr> <td colspan=1 rowspan=1 > World Championships </td><td colspan=1 rowspan=1 > Rome, Italy </td><td colspan=1 rowspan=1 > 1st </td><td colspan=1 rowspan=1 > 10,000 m </td><td colspan=1 rowspan=1 > 31:05.85 </td></tr>
<tr> <td colspan=1 rowspan=1 > World Road Race Championships </td><td colspan=1 rowspan=1 > Monte Carlo, Monaco </td><td colspan=1 rowspan=1 > 1st </td><td colspan=1 rowspan=1 > 15 km </td><td colspan=1 rowspan=1 > 47:17 </td></tr>
<tr> <td colspan=1 rowspan=4 > 1988 </td><td colspan=1 rowspan=1 > World Road Race Championships </td><td colspan=1 rowspan=1 > Adelaide, Australia </td><td colspan=1 rowspan=1 > 1st </td><td colspan=1 rowspan=1 > 15 km </td><td colspan=1 rowspan=1 > 48:24 </td></tr>
<tr> <td colspan=1 rowspan=1 > World Cross Country Championships </td><td colspan=1 rowspan=1 > Auckland, New Zealand </td><td colspan=1 rowspan=1 > 1st </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > London Marathon </td><td colspan=1 rowspan=1 > London, United Kingdom </td><td colspan=1 rowspan=1 > 1st </td><td colspan=1 rowspan=1 > Marathon </td><td colspan=1 rowspan=1 > 2:25:41 </td></tr>
<tr> <td colspan=1 rowspan=1 > Olympic Games </td><td colspan=1 rowspan=1 > Seoul, South Korea </td><td colspan=1 rowspan=1 > — </td><td colspan=1 rowspan=1 > 10,000 m </td><td colspan=1 rowspan=1 > DNF </td></tr>
<tr> <td colspan=1 rowspan=2 > 1989 </td><td colspan=1 rowspan=1 > Boston Marathon </td><td colspan=1 rowspan=1 > Boston, United States </td><td colspan=1 rowspan=1 > 1st </td><td colspan=1 rowspan=1 > Marathon </td><td colspan=1 rowspan=1 > 2:24:33 </td></tr>
<tr> <td colspan=1 rowspan=1 > New York City Marathon </td><td colspan=1 rowspan=1 > New York, United States </td><td colspan=1 rowspan=1 > 1st </td><td colspan=1 rowspan=1 > Marathon </td><td colspan=1 rowspan=1 > 2:25:30 </td></tr>
<tr> <td colspan=1 rowspan=1 > 1991 </td><td colspan=1 rowspan=1 > World Championships </td><td colspan=1 rowspan=1 > Tokyo, Japan </td><td colspan=1 rowspan=1 > 7th </td><td colspan=1 rowspan=1 > 10,000 m </td><td colspan=1 rowspan=1 > 32:10.75 </td></tr>
</table>
Question:
What did Ingrid Kristiansen achieve in 1984?
Answer:
Ingrid Kristiansen won the Houston Marathon and the London Marathon in 1984.