What's Happening In March?

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Across
  1. 3. Zodiac sign born from the 21st of March to the 19th of April
  2. 5. A form of competitions using online games
  3. 6. Zodiac sign born from the 19th of February to 20th of March
  4. 7. Observed by muslims worldwide as the month of prayer, fasting, and reflection
Down
  1. 1. The Author and illustrator of children's book such as "The Cat in The Hat" and "Green Eggs and Ham" (without honorific)
  2. 2. One of the four seasons in the southern hemisphere starting from March
  3. 4. One of the four seasons in the northern hemisphere starting from March
  4. 5. One of the smartest people known, and discovered E = mc² (last name)