This is from an article of various things that happened on this date throughout history so the cosmonette part is barely a footnote. But the same article links to a proper full length piece on Valentina Tereshkova on the same website. https://www.upi.com/Archives/1963/06/17/Valentina-Tereshkova-becomes-first-woman-in-space/7181529031077/

It's a bit of a weirdly written article at times. Very focussed on the US, which I guess is relevant given the context but comes across strangely combative and defensive considering it's supposed to be marking an achievement. Good to see that achievement get some press, I must admit I never knew the name of the first woman in space, which is pretty bad.