Ku wa 16 Kamena 1963, amateka y’isi yarahindutse ubwo Umunyarusiyakazi Valentina Tereshkova yabaga umugore wa mbere ugeze mu isanzure ry’ikirere. Iki gikorwa cyabaye intambwe ikomeye mu iterambere ry’ubushakashatsi bw’isanzure ndetse no mu rugamba rwo guha abagore amahirwe angana n’ay’abagabo mu nzego z’ubumenyi n’ikoranabuhanga.
Valentina Tereshkova yavutse ku wa 6 Werurwe 1937 mu cyahoze ari Leta Zunze Ubumwe z’Abasoviyeti (Soviet Union). Yatangiye kwamamara nyuma yo gutoranywa mu itsinda ry’abategurwaga kujya mu isanzure, ibintu byari bigoye cyane kugeraho muri icyo gihe.
Ku myaka 26 gusa, Tereshkova yoherejwe mu cyogajuru cya Vostok 6, mu rugendo rwabaye urw’amateka. Icyo gihe, Leta Zunze Ubumwe z’Abasoviyeti na Leta Zunze Ubumwe za Amerika zari zihanganye mu irushanwa rikomeye ry’ikoranabuhanga ryiswe “Space Race”, ryari rigamije kugaragaza igihugu gifite ubushobozi buhambaye mu bushakashatsi bw’isanzure.
Mu rugendo rwe, Tereshkova yamaze amasaha agera kuri 71 ari mu isanzure, aho yazengurutse Isi inshuro 48 mbere yo kugaruka amahoro ku butaka. Ibyo byatumye aba umwe mu bantu b’ingenzi mu mateka y’ubushakashatsi bw’isanzure ndetse anafungurira amarembo abagore benshi.
Mbere y’icyo gihe, abagore ntibabonaga amahirwe menshi mu bikorwa by’ubushakashatsi n’ikoranabuhanga byo ku rwego rwo hejuru. Intsinzi ya Tereshkova yagaragaje ko ubushobozi bwo kugera ku ntego zikomeye butagendera ku gitsina, ahubwo bushingira ku bumenyi, imyitozo n’ubwitange.
Nyuma y’uru rugendo, yakomeje kugira uruhare mu bikorwa bya siyansi no mu buzima bwa politiki bw’u Burusiya. Kugeza n’uyu munsi, akomeje gufatwa nk’ikimenyetso cy’ubutwari, ubwitange n’iterambere ry’uburenganzira bw’abagore mu nzego zitandukanye.
Uyu munsi, imyaka irenga 60 irashize, isi iracyibuka Valentina Tereshkova nk’umugore wa mbere wageze mu isanzure ndetse nk’umwe mu bantu bagize uruhare rukomeye mu rugendo rw’ikiremwamuntu rwo gusobanukirwa amabanga y’isanzure.
