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:
German Cargo
Table title:
Fleet
Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=1 rowspan=1 > Aircraft </th><th colspan=1 rowspan=1 > Introduced </th><th colspan=1 rowspan=1 > Retired </th></tr>
<tr> <td colspan=1 rowspan=1 > Boeing 707 </td><td colspan=1 rowspan=1 > 1977 </td><td colspan=1 rowspan=1 > 1985 </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > Boeing 737-200 </td><td class="highlighted"  colspan=1 rowspan=1 > 1990 </td><td colspan=1 rowspan=1 > 1993 </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > Boeing 747-200 </td><td class="highlighted"  colspan=1 rowspan=1 > 1990 </td><td colspan=1 rowspan=1 > 1993 </td></tr>
<tr> <td colspan=1 rowspan=1 > Douglas DC-8 </td><td colspan=1 rowspan=1 > 1984 </td><td colspan=1 rowspan=1 > 1993 </td></tr>
</table>
Question:
What aircraft was introduced in 1990?
Answer:
From 1990, the Boeing 747 as well as the Boeing 737 was introduced.