▁May ▁ 1 9 8 8 , ▁Stephen ▁Ven ables ▁became ▁the ▁first ▁Brit on ▁to ▁sum mit ▁Ever est ▁without ▁o xygen , ▁alone . ▁Team ▁leader ▁Robert ▁Anderson ▁and ▁Ed ▁Web ster ▁reached ▁the ▁South ▁Sum mit . ▁ ▁All ▁three , ▁with ▁Paul ▁Te are , ▁had ▁clim bed ▁a ▁new ▁route ▁up ▁the ▁K ang sh ung ▁Face ▁to ▁the ▁South ▁Col , ▁with ▁no ▁o xygen ▁and ▁no ▁high ▁alt itude ▁por ters . ▁▁ ▁In ▁ 1 9 8 8 , ▁Jon ▁Mu ir ▁became ▁the ▁first ▁person ▁to ▁reach ▁the ▁sum mit ▁without ▁a ▁sh er pa . ▁▁▁ 1 9 8 9 ▁▁▁ ▁May ▁ 1 0 ▁Y ug oslav ▁expedition . ▁S out heast ▁R idge . ▁St ipe ▁Bo ž ić , ▁V iki ▁Gros el j , ▁Dim itar ▁Il iev ski - M ur ato , ▁and ▁Sher pas ▁Son am ▁and ▁Ag iva ▁all ▁reached ▁the ▁sum mit . ▁Il iev ski - M ur ato ▁failed ▁to ▁return . ▁▁▁ ▁May ▁ 1 6 ▁– ▁Ric ardo ▁Tor res - N ava ▁and ▁two ▁Sher pas , ▁Ang ▁L h ak pa ▁and ▁Dor je , ▁got ▁to ▁the ▁mount aint op ▁with ▁supp lement ary ▁o xygen ▁in ▁an ▁American ▁expedition . ▁Tor res - N ava ▁become ▁the ▁first ▁Mexican ▁and ▁Latin ▁American ▁to ▁do ▁so . ▁▁ ▁July ▁ 1 8 ▁– ▁Carlos ▁C ars ol io ▁reached ▁the ▁sum mit ▁without ▁bott led ▁o xygen