If I'm not mistaken, the Episcopal Church changed its name (if not its legal title) at the same time it ratified a new Book of Common Prayer in 1979. That prayer book emphasized the primacy of the Holy Eucharist in a way previous prayer books had not. The Episcopal Church "evolved," to use a popular term - it became more itself - it became more catholic (small "c") not only in terms of its liturgical practice but also in its theology. It did this in large part from having observed Vatican II from afar and absorbing the immense liturgical scholarship that emanated from it. Anglicans are smart - they've never had a problem borrowing the best of our tradition from us. It's time we return the favor and ordain some women.