Explanation: President Pro Tempore
The Constitution provides for a president pro tempore to preside over the Senate in the absence of the vice president. Except for the years from 1886 to 1947, the president pro tempore has been included in the presidential line of succession. Following passage of the Presidential Succession Act of 1792, the president pro tempore was next in line after the vice president, and followed by the Speaker of the House of Representatives. In 1886 a new law removed the president pro tempore and the Speaker from the line of succession, substituting cabinet officers. A 1947 law changed the order of succession to place the Speaker of the House in line after the vice president, followed by the president pro tempore, and then the secretary of state and other cabinet officers in order of their departments' creation. This is the system in effect today.
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This depends on your definition of "friendly". Although there was plenty of animosity in the years after the war, Americans and British maintained a fairly cordial relationship because it was in the best interest of both countries to trade with one another. However tensions over land disputes and the British taking American sailors eventually led to the War of 1812.
Some of the improvements made to constantinople as a result of justinians public works projects are bridges, public baths, parks, roads, hospitals, hagia sophia or as called as grand cathedral. In addition, justinian was required to reconstruct constantinople when the city zones were abandoned when fighting in the hippodrome fell into the streets and intensified into a insurgence.
2. Puerto Rico is a territory and not officially a state.
(1 is Hawaii, 3 is Alaska, and 4 is the continental United States)