Countless times throughout the history of human existence on this world.
20 years
20 years
She has been spotted a number of times smoking.
Mars has been observed since ancient times and nobody is sure who spotted it first as it is only recorded as prehistory.
I've never been to Calgary, but I've seen the northern lights in southern New Brunswick a few times so I imagine you can. However, big cities have a lot of light pollution so you may not even be able to see the stars at night :)
She has been spotted a number of times smoking.
Since there have been people living far enough north to observe the Northern Lights since before recorded history, the best we can say is "prehistoric".
the medfly has been spotted no where
he has been spotted 2 times at the pool, and both times he was with his shirt on
Denmark is certainly far enough north to see the northern lights; they've been seen (on extremely rare occasions) as far south as Mexico City.
As the northern lights are a commonly occurring phenomena, it's likely the very first Inuit people were the discoverers of the Northern Lights. This could have been anywhere around the 8th-11th century. It got a lot of attention in the late 18th century when Benjamin Franklin hypothesised as to what caused them
YES. The Southern Balck Widow is native to PA. The Northern black widow as been spotted in PA.