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:
2000 in Fighting Network Rings
Table title:
Events list
Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=1 rowspan=1 > # </th><th colspan=1 rowspan=1 > Event Title </th><th colspan=1 rowspan=1 > Date </th><th colspan=1 rowspan=1 > Arena </th><th colspan=1 rowspan=1 > Location </th></tr>
<tr> <td colspan=1 rowspan=1 > 55 </td><td colspan=1 rowspan=1 > Rings: King of Kings 2000 Block B </td><td colspan=1 rowspan=1 > December 22, 2000 </td><td colspan=1 rowspan=1 > Osaka Prefecture Gymnasium </td><td colspan=1 rowspan=1 > Osaka, Japan </td></tr>
<tr> <td colspan=1 rowspan=1 > 54 </td><td colspan=1 rowspan=1 > Rings Australia: Free Fight Battle </td><td colspan=1 rowspan=1 > November 12, 2000 </td><td colspan=1 rowspan=1 > Alexandra Hills Hotel </td><td colspan=1 rowspan=1 > Brisbane, Australia </td></tr>
<tr> <td colspan=1 rowspan=1 > 53 </td><td colspan=1 rowspan=1 > Rings Lithuania: Bushido Rings 1 </td><td colspan=1 rowspan=1 > October 24, 2000 </td><td colspan=1 rowspan=1 > Vilnius Palace of Concerts and Sports </td><td colspan=1 rowspan=1 > Vilnius, Lithuania </td></tr>
<tr> <td colspan=1 rowspan=1 > 52 </td><td colspan=1 rowspan=1 > Rings: King of Kings 2000 Block A </td><td colspan=1 rowspan=1 > October 9, 2000 </td><td colspan=1 rowspan=1 > Yoyogi National Stadium Gym 2 </td><td colspan=1 rowspan=1 > Tokyo, Japan </td></tr>
<tr> <td colspan=1 rowspan=1 > 51 </td><td colspan=1 rowspan=1 > Rings USA: Rising Stars Final </td><td colspan=1 rowspan=1 > September 30, 2000 </td><td colspan=1 rowspan=1 > The Mark of the Quad Cities </td><td colspan=1 rowspan=1 > Moline, Illinois </td></tr>
<tr> <td colspan=1 rowspan=1 > 50 </td><td colspan=1 rowspan=1 > Rings: Battle Genesis Vol. 6 </td><td colspan=1 rowspan=1 > September 5, 2000 </td><td colspan=1 rowspan=1 > Korakuen Hall </td><td colspan=1 rowspan=1 > Tokyo, Japan </td></tr>
<tr> <td colspan=1 rowspan=1 > 49 </td><td colspan=1 rowspan=1 > Rings: Millennium Combine 3 </td><td colspan=1 rowspan=1 > August 23, 2000 </td><td colspan=1 rowspan=1 > Osaka Prefecture Gymnasium </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 48 </td><td colspan=1 rowspan=1 > Rings: Russia vs. Georgia </td><td colspan=1 rowspan=1 > August 16, 2000 </td><td colspan=1 rowspan=1 > Tula Circus </td><td colspan=1 rowspan=1 > Tula, Russia </td></tr>
<tr> <td colspan=1 rowspan=1 > 47 </td><td colspan=1 rowspan=1 > Rings USA: Rising Stars Block B </td><td colspan=1 rowspan=1 > July 22, 2000 </td><td colspan=1 rowspan=1 > Neal S. Blaisdell Center </td><td colspan=1 rowspan=1 > Honolulu, Hawaii </td></tr>
<tr> <td colspan=1 rowspan=1 > 46 </td><td colspan=1 rowspan=1 > Rings USA: Rising Stars Block A </td><td colspan=1 rowspan=1 > July 15, 2000 </td><td colspan=1 rowspan=1 > McKay-Dee Hospital Center </td><td colspan=1 rowspan=1 > Orem, Utah </td></tr>
<tr> <td colspan=1 rowspan=1 > 45 </td><td colspan=1 rowspan=1 > Rings: Millennium Combine 2 </td><td colspan=1 rowspan=1 > June 15, 2000 </td><td colspan=1 rowspan=1 > Yoyogi National Stadium Gym 2 </td><td colspan=1 rowspan=1 > Tokyo, Japan </td></tr>
<tr> <td colspan=1 rowspan=1 > 44 </td><td colspan=1 rowspan=1 > Rings Holland: Di Capo Di Tutti Capi </td><td colspan=1 rowspan=1 > June 4, 2000 </td><td colspan=1 rowspan=1 > Vechtsebanen Sport Hall </td><td colspan=1 rowspan=1 > Utrecht, Netherlands </td></tr>
<tr> <td colspan=1 rowspan=1 > 43 </td><td class="highlighted"  colspan=1 rowspan=1 > Rings Russia: Russia vs. Bulgaria </td><td class="highlighted"  colspan=1 rowspan=1 > May 21, 2000 </td><td colspan=1 rowspan=1 >  </td><td class="highlighted"  colspan=1 rowspan=1 > Tula, Russia </td></tr>
<tr> <td colspan=1 rowspan=1 > 42 </td><td colspan=1 rowspan=1 > Rings Russia: Russia vs. The World </td><td colspan=1 rowspan=1 > May 20, 2000 </td><td colspan=1 rowspan=1 > Yekaterinburg Sports Palace </td><td colspan=1 rowspan=1 > Yekaterinburg, Sverdlovsk Oblast, Russia </td></tr>
<tr> <td colspan=1 rowspan=1 > 41 </td><td colspan=1 rowspan=1 > Rings: Millennium Combine 1 </td><td colspan=1 rowspan=1 > April 20, 2000 </td><td colspan=1 rowspan=1 > Yoyogi National Stadium Gym 2 </td><td colspan=1 rowspan=1 > Tokyo, Japan </td></tr>
<tr> <td colspan=1 rowspan=1 > 40 </td><td colspan=1 rowspan=1 > Rings Australia: NR 4 </td><td colspan=1 rowspan=1 > March 19, 2000 </td><td colspan=1 rowspan=1 > Alexandra Hills Hotel </td><td colspan=1 rowspan=1 > Brisbane, Australia </td></tr>
<tr> <td colspan=1 rowspan=1 > 39 </td><td colspan=1 rowspan=1 > Rings: King of Kings 1999 Final </td><td colspan=1 rowspan=1 > February 26, 2000 </td><td colspan=1 rowspan=1 > Nippon Budokan </td><td colspan=1 rowspan=1 > Tokyo, Japan </td></tr>
<tr> <td colspan=1 rowspan=1 > 38 </td><td colspan=1 rowspan=1 > Rings Holland: There Can Only Be One Champion </td><td colspan=1 rowspan=1 > February 6, 2000 </td><td colspan=1 rowspan=1 > Vechtsebanen Sport Hall </td><td colspan=1 rowspan=1 > Utrecht, Netherlands </td></tr>
</table>
Question:
What was the event Rings Russia: Russia vs. Bulgaria?
Answer:
Rings Russia: Russia vs. Bulgaria was an event held on May 21, 2000 in Tula, Russia.