<page_title> International Botanical Congress </page_title> <section_title> History </section_title> <table> <cell> 1900 <col_header> Year </col_header> </cell> <cell> XVIII <col_header>  </col_header> </cell> <cell> 2011 <col_header> Year </col_header> </cell> <cell> Melbourne <col_header> City </col_header> </cell> <cell> Australia <col_header> Country </col_header> </cell> <cell> XIX <col_header>  </col_header> </cell> <cell> 2017 <col_header> Year </col_header> </cell> <cell> Shenzhen <col_header> City </col_header> </cell> <cell> China <col_header> Country </col_header> </cell> </table>
The numbering system for the International Botanical Congress starts from the year 1900; the XVIII IBC was held in Melbourne, Australia in 2011 and the XIX IBC was held in Shenzhen, China in 2017.