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:
1977 Michigan Wolverines football team
Table title:
Schedule
Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=1 rowspan=1 > Date </th><th colspan=1 rowspan=1 > Opponent </th><th colspan=1 rowspan=1 > Rank </th><th colspan=1 rowspan=1 > Site </th><th colspan=1 rowspan=1 > TV </th><th colspan=1 rowspan=1 > Result </th><th colspan=1 rowspan=1 > Attendance </th></tr>
<tr> <td colspan=1 rowspan=1 > September 10 </td><td colspan=1 rowspan=1 > at Illinois </td><td colspan=1 rowspan=1 > No. 2/NA </td><td colspan=1 rowspan=1 > Memorial StadiumChampaign, Il (series) </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > W 37–9 </td><td colspan=1 rowspan=1 > 60,477 </td></tr>
<tr> <td colspan=1 rowspan=1 > September 17 </td><td colspan=1 rowspan=1 > Duke* </td><td colspan=1 rowspan=1 > No. 1/1 </td><td colspan=1 rowspan=1 > Michigan StadiumAnn Arbor, MI </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > W 21–9 </td><td colspan=1 rowspan=1 > 104,072 </td></tr>
<tr> <td colspan=1 rowspan=1 > September 24 </td><td colspan=1 rowspan=1 > Navy* </td><td colspan=1 rowspan=1 > No. 1/1 </td><td colspan=1 rowspan=1 > Michigan StadiumAnn Arbor, MI </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > W 14–7 </td><td colspan=1 rowspan=1 > 101,800 </td></tr>
<tr> <td colspan=1 rowspan=1 > October 1 </td><td colspan=1 rowspan=1 > No. 5/5 Texas A&M* </td><td colspan=1 rowspan=1 > No. 3/3 </td><td colspan=1 rowspan=1 > Michigan StadiumAnn Arbor, MI </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > W 41–3 </td><td colspan=1 rowspan=1 > 104,802 </td></tr>
<tr> <td colspan=1 rowspan=1 > October 8 </td><td colspan=1 rowspan=1 > at Michigan State </td><td colspan=1 rowspan=1 > No. 3/2 </td><td colspan=1 rowspan=1 > Spartan StadiumEast Lansing, MI (Paul Bunyan Trophy) </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > W 24–14 </td><td colspan=1 rowspan=1 > 78,183 </td></tr>
<tr> <td colspan=1 rowspan=1 > October 15 </td><td colspan=1 rowspan=1 > No. 14/15 Wisconsin </td><td colspan=1 rowspan=1 > No. 1/1 </td><td colspan=1 rowspan=1 > Michigan StadiumAnn Arbor, MI </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > W 56–0 </td><td colspan=1 rowspan=1 > 104,892 </td></tr>
<tr> <td colspan=1 rowspan=1 > October 22 </td><td class="highlighted"  colspan=1 rowspan=1 > at Minnesota </td><td colspan=1 rowspan=1 > No. 1/1 </td><td colspan=1 rowspan=1 > Memorial StadiumMinneapolis, MN (Little Brown Jug) </td><td colspan=1 rowspan=1 >  </td><td class="highlighted"  colspan=1 rowspan=1 > L 0–16 </td><td colspan=1 rowspan=1 > 44,165 </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > October 29 </td><td class="highlighted"  colspan=1 rowspan=1 > Iowa </td><td class="highlighted"  colspan=1 rowspan=1 > No. 6/6 </td><td class="highlighted"  colspan=1 rowspan=1 > Michigan StadiumAnn Arbor, MI </td><td colspan=1 rowspan=1 >  </td><td class="highlighted"  colspan=1 rowspan=1 > W 23–6 </td><td class="highlighted"  colspan=1 rowspan=1 > 104,617 </td></tr>
<tr> <td colspan=1 rowspan=1 > November 5 </td><td colspan=1 rowspan=1 > Northwestern </td><td colspan=1 rowspan=1 > No. 6/6 </td><td colspan=1 rowspan=1 > Michigan StadiumAnn Arbor, MI </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > W 63–20 </td><td colspan=1 rowspan=1 > 103,211 </td></tr>
<tr> <td colspan=1 rowspan=1 > November 12 </td><td colspan=1 rowspan=1 > at Purdue </td><td colspan=1 rowspan=1 > No. 6/6 </td><td colspan=1 rowspan=1 > Ross–Ade StadiumWest Lafayette, IN </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > W 40–7 </td><td colspan=1 rowspan=1 > 68,003 </td></tr>
<tr> <td colspan=1 rowspan=1 > November 19 </td><td colspan=1 rowspan=1 > No. 4/4 Ohio State </td><td colspan=1 rowspan=1 > No. 5/5 </td><td colspan=1 rowspan=1 > Michigan StadiumAnn Arbor, MI (rivalry) </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > W 14–6 </td><td colspan=1 rowspan=1 > 106,024 </td></tr>
<tr> <td colspan=1 rowspan=1 > January 1, 1978 </td><td colspan=1 rowspan=1 > vs. No. 13/14 Washington* </td><td colspan=1 rowspan=1 > No. 4/4 </td><td colspan=1 rowspan=1 > Rose BowlPasadena, CA (Rose Bowl) </td><td colspan=1 rowspan=1 > NBC </td><td colspan=1 rowspan=1 > L 20–27 </td><td colspan=1 rowspan=1 > 105,312 </td></tr>
<tr> <td colspan=7 rowspan=1 > *Non-conference gameHomecomingRankings from AP Poll / Coaches Poll released prior to gameAll times are in Eastern time </td></tr>
</table>
Question:
Michigan, ranked #6 after losing to Minnesota, defeated which team 23-6 in front of 104,617 at Michigan Stadium on October 29, 1977?
Answer:
On October 29, 1977, Michigan, ranked #6 after losing to Minnesota, defeated Iowa, 23–6, before a crowd of 104,617 at Michigan Stadium.