Why did king henry vii of england commission an exploration to find a "northwest passage" 1497?

King Henry VII of England commissioned an exploration so that a northwest passage is found towards the Orient because the Ottomans had captured Constantinople which was of great importance trade wise and also the waters in the eastern part of the Mediterranean became very dangerous for sale. Because the English king did not wanted to pay huge commissions to the Ottomans so that English boats can pass by freely and safely, he wanted a new route to be found so that the trade can go on freely and by English terms, not someone else's.

the  seven  days  battles  were  a series of seven battles over seven  days from june 25 to july 1, 1862, near richmond, virginia,  during  the american civil war. the  seven  days ended with mcclellan's army in relative safety next to the james river, having suffered almost 16,000 casualtiesduring  the retreat.