The causes of the Polish-Ottoman War of 1672-76 can be traced to 1666. Petro Doroshenko Hetman of Zaporizhian Host, aiming to gain control of Ukraine but facing defeats from other factions struggling over control of that region, in a final bid to preserve his power in Ukraine, signed a treaty with Sultan Mehmed IV in 1669 that recognized the Cossack Hetmanate as a vassal of the Ottoman Empire.:273 In the meantime, Commonwealth forces were trying to put down unrest in Ukraine, but were weakened by decades long wars ). Trying to capitalize on that weakness, Tatars, who commonly raided across the Commonwealth borders in search of loot and plunder, invaded, this time allying themselves with Cossacks under hetman Doroshenko. They were however stopped by Commonwealth forces under hetman John Sobieski, who stopped their first push , defeating them several times, and finally gaining an armistice after the Battle of Podhajce. In 1670, however, hetman Doroshenko tried once again to take over Ukraine, and in 1671 Khan of Crimea, Adil Giray, supportive of the Commonwealth, was replaced with a new one, Selim I Giray, by the Ottoman sultan. Selim entered into an alliance with the Doroshenko's Cossacks; but again like in 1666-67 the Cossack-Tatar forces were dealt defeats by Sobieski. Selim then renewed his oath of allegiance to the Ottoman Sultan and pleaded for assistance, to which the Sultan agreed. Thus an irregular border conflict escalated into a regular war in 1671, as the Ottoman Empire was now prepared to send its regular units onto the battlefield in a bid to try to gain control of that region for itself.:646

What 2 things did the treaty do?
A: preserve his power in Ukraine

After two straight road wins, the Steelers returned home for their second game of the season against the Ravens. The Steelers scored first in the first quarter when Ben Roethlisberger found Xavier Grimble on a 20-yard touchdown pass and a 7-0 lead. The Ravens closed out the first quarter with a Justin Tucker field goal from 41 yards out for a 7-3 lead. In the second quarter, Tucker kicked another field goal this one from 38 yards out to make the halftime score 7-6. In the third quarter, the Ravens moved into the lead when Joe Flacco found Steve Smith Sr. on an 18-yard touchdown pass with a successful two-point conversion to make it 14-7. The Steelers drew closer when Chris Boswell made a 36-yard field goal to make it 14-10. Though the Ravens moved back ahead by a touchdown when Tucker kicked a 46-yard field goal to make it 17-10. In the fourth quarter, Tucker kicked a 23-yard field goal to send the Ravens up by double digits and make the score 20-10. The Steelers eventually retook the lead with 2 straight touchdowns: Le'Veon Bell ran for one from 7-yards out followed by Roethlisberger finding Bell on a 7-yard pass to take the score to 24-20. The Ravens retook the lead when Kyle Juszczyk ran for a 10-yard touchdown to make it 27-24. However, the Steelers completed the comeback when Roethlisberger found Antonio Brown on a 4-yard pass to make the final score 31-27. With their four-game losing streak against the Ravens snapped, the Steelers improved to 10-5 and were awarded the AFC North division title. The team also won six games in a row for the first time since 2004.

Who scored fewer points in the first quarter?
A: Ravens

Successful mining took time and capital, particularly once most of the timber around the Klondike had been cut down. A realistic mining operation required $1,500 for wood to be burned to melt the ground, along with around $1,000 to construct a dam, $1,500 for ditches and up to $600 for sluice boxes, a total of $4,600. The attraction of the Klondike to a prospector, however, was that when gold was found, it was often highly concentrated. Some of the creeks in the Klondike were fifteen times richer in gold than those in California, and richer still than those in South Africa. In just two years, for example, $230,000 worth of gold was brought up from claim 29 on the Eldorado Creek.

What all is needed to be purchased to have a function mining operation?
A:
wood